Music Ensemble

We all sing. In the car, in the shower, at the pub. But many of us are unsure about our ability to sing in front of other people. The Arlingtones Barbershop Chorus wants to help you get the most beautiful sound possible from your voice with the confidence to perform. We love to sing – that’s why we do it and have for over 60 years. Join us for a Tuesday evening and we'll show you what Barbershop Music is all about. No experience or materials necessary.

Have you been thinking about trying self-defense training, but do not want a loud, aggressive, or overly competitive environment? This free intro class is a simple way to get started. Maryland Systema offers practical self-defense training for adults in Rockville with a focus on movement, awareness, breathing, posture, and calm under pressure. This class is designed for beginners and first-timers who want real-world self-defense training in a welcoming setting. You do not need experience. You do not need to be in top shape. You do not need a martial arts background. You just need to show up ready to learn. This is not a sport-based class built around winning points, memorizing routines, or trying to look impressive. It is a more practical approach to adult self-defense training that helps you stay balanced, aware, and functional when things feel uncertain. If you have been searching for self-defense classes in Rockville, beginner self-defense near you, or practical self-defense training for adults, this class is a good place to start. **What you will work on** * Breathing and staying calm under pressure * Movement that improves balance and mobility * Awareness and posture * Simple partner drills * Practical self-defense training for beginners **Who this class is for** * Adults new to self-defense training * Beginners looking for a low-pressure class * People who want practical self-defense instead of sport martial arts * Adults in Takoma Park, Silver Spring, Rockville, and nearby areas looking for realistic self-defense classes **What to wear** Please wear comfortable workout clothes. No uniform is required. **Why start with this class** This free intro class gives you a chance to experience the training, meet the group, and see whether Maryland Systema is the right fit for you before joining regular weekly classes. **RSVP** Reserve your spot and come try a beginner-friendly self-defense class in Rockville.

If you love A Cappella Singing come check out the Harmonizers and Metro Voices...The lower voice and treble voice choruses- both part of the Alexandria A Cappella Collective. If you love 4-part harmony you'll want to visit us! We will be rehearsing on May 19th at Beth El 3830 Seminary Rd, Alexandria, VA 22304. We pride ourselves on providing opportunities for everyone to sing. We welcome everyone to visit our rehearsal and enjoy the singing while learning more about us!

Whether you’re coming solo or with friends, Divino is the perfect place to gather. Enjoy live music, handcrafted dishes, and a warm, social atmosphere. FREE PARKING GARAGE

We’re excited to bring the community together for an evening of learning and connection. This time, we'll have a community member from Chainguard sharing a use case and, as usual, an Elastic employee sharing their expertise as well. Come support your fellow developers, learn something new, and meet others who are passionate about search, observability, and security. **Date and Time:** Tuesday, May 19th, from 5:30-7:30 pm EDT **Location:** Elastic Arlington Office - 4100 Fairfax Drive, Ste 500, Arlington, VA 22203 **Agenda:** * 5:30 pm: Doors open; say hi, grab a seat, and eat some food. * 6:00 pm: The SBOM Pile in Your S3 Bucket: Turning Bills of Materials Into a Risk Dashboard; and Watching It Shrink with Chainguard, by Mike Barreta, Senior Manager, Engineering at Chainguard * 6:30 pm: Q&A * 6:40 pm: **Agentic Observability: Next-Gen Alerting and Auto-Detected Significant Events**, by Jason Rhodes, Senior Manager, Software Engineering at Elastic * 7:10 pm: Q&A * 7:20-7:30 pm: Networking & refreshments **Talk Abstracts:** **"The SBOM Pile in Your S3 Bucket: Turning Bills of Materials Into a Risk Dashboard; and Watching It Shrink with Chainguard**" Most organizations now generate SBOMs because someone — EO 14028, a FedRAMP auditor, an ISSM — told them to. They land in an S3 bucket, get versioned, and are almost universally never queried. This talk is about what happens when you finally do. I'll stand up a self-contained Elastic stack, pour in SBOMs (SPDX), SLSA provenance, Sigstore signatures, Grype vulnerability scans, the CISA KEV catalog, and OpenVEX adjudication for 30 container images, and show the queries that only become possible once SBOMs stop being compliance artifacts and start being telemetry: which packages I actually run right now, which CVEs are real exposures versus VEX-suppressed noise, what swapping a stock image for its Chainguard equivalent would buy me, and how much of my CVE list is just stuff I inherited from the base layer. Then the cleanup. The same dashboards on Chainguard images show what disappears when the SBOM is small, the signatures verify, and the advisory feed is active: \~9,000 fewer CVEs and \~2.5 GB saved across 20 image pairs, KEV exposure dropping from 7 hits to 0, compliance pass rate going from 0% to 76.5% against NIST 800-218 / FedRAMP Moderate / SSDF. **Bio:** Mike Barretta leads Chainguard’s public sector solutions engineering team, focused on helping ensure the federal government receives its fair share of the future. Barretta has worked across civilian, defense and intel programs in a variety of roles—software developer, data scientist, solution architect—for a variety of organizations—system integrators, consulting companies, software vendors—with the common purpose of creating and championing technologies and techniques for simplifying the extraction and utilization of information from lots of data. Having witnessed the ever-increasing threats to those systems, Barretta is now focused on methods and mitigations to secure them **Agentic Observability: Next-Gen Alerting and Auto-Detected Significant Events** We're rebuilding Elastic's alerting engine to make alerts more flexible\, more powerful\, and more valuable as data\. Next\-gen alerting rules will run anything ES\|QL supports and capture whatever fields matter to you\, so alerts carry the context you need for real downstream analysis\. And if you'd rather not manage these rules yourself\, AI agents can help\, drafting them from natural language\, recommending tuning and configuration changes\, and reducing noise through deduplication\. On top of this, we're also building a new Significant Events system which automatically builds a continuously updated knowledge base of your incoming data's own metadata. Using this deep understanding, our agentic tools will detect significant events from log patterns, anomalies, and predicted behavior — without you having to create a single rule. **Bio:** Jason Rhodes is a software engineering lead at Elastic, where he works on alerting and observability features. Based in the DC area, he has over 15 years of experience in software development and has been an active contributor to the local tech community — creating and organizing Baltimore NodeSchool and charmCityJS. When he's not writing and reviewing code, he's probably watching too many movies. **Parking:** * The building’s parking garage is operated by Colonial Parking and is located off N. Randolph Street * Book a spot on[ SpotHero](https://spothero.com/search?kind=address&latitude=38.8818514&longitude=-77.1095268&search_string=4100+Fairfax+Dr+%23500%2C+Arlington%2C+VA+22203%2C+USA) * A Metro Station is located across the street

Please join us every week for power networking! Our Chapter Passed $1,666,736 USD in the past 12 months! BNI members, on average, increase their business 20% the first year. Our chapter is a dynamic, committed group of business people who know how to refer business to each other. Come for our meeting -- stay for the referrals!!! We have open categories for individuals who will bring enthusiasm and integrity to our meeting. Just one person per professional specialty is allowed in each chapter. Visit a meeting to find out more and lock out your competition! Register Here: https://bninovanorth.com/va-nova-north-bni-mclean-business-connection--n136/en-US/visitorregistration?chapterId=16988

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Demography as Destiny,”** on understanding the links between population trends and world events, with John Rennie Short, geographer, professor emeritus of public policy at the University of Maryland, Baltimore County, and author of *Demography and the Making of the Modern World: Public Policies and Demographic Forces.* [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-demography-destiny](https://events.ticketleap.com/tickets/profsandpints/dc-demography-destiny) .] The size of a family doesn’t just affect food and clothing budgets and space needs. If it reflects a broader trend in birth rates, it also can have a profound impact on politics, the economy, and world affairs. Come to Washington D.C.’s Penn Social for a fascinating look at how demographic forces shape the modern world and have driven developments such as the Arab Spring, political unrest in Sri Lanka and Nepal, economic growth in Vietnam and India, the budget crisis in the United States, and the rise of nationalist populism in Europe. Dr. John Rennie Short, who has written several acclaimed books on world trends and gives excellent Profs and Pints talks focused on geopolitical affairs, will break down how various demographic changes can alter nations’ destinies. You’ll learn how baby booms can dampen economic growth, as has occurred in central Africa, and how a “youth bulge” caused by the aging of a baby boom provides tinder for social unrest, as happened in the United States of the 1960s and 1970s and is the case today in Nepal and Sri Lanka. We’ll look at the “demographic dividend” reaped when a youth bulge ages enough to become economically productive and the roles that such dividends played in periods of sustained economic growth in Japan, China, and, most recently, Vietnam. We’ll look at how the aging of a demographic bulge into retirement years can strain national budgets and strengthen the appeal of conservative or populist political movements. You’ll emerge from the talk better equipped to make sense of political and economic developments in the United States and elsewhere around the world. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image by Canva.

Join us across the street at roughly 6:30 p.m. for a slice of pizza at Andy's Pizza, doors open at the 9:30 club at 7:00, there's an opening act, then The New Pornographers, probably by 8:30 or 9:00 p.m. Tickets: $40 @ 9:30 box office $51 @ Ticketmaster [https://www.ticketmaster.com/the-new-pornographers-washington-district-of-columbia-05-21-2026/event/1500636ECDD0A08C](https://www.ticketmaster.com/the-new-pornographers-washington-district-of-columbia-05-21-2026/event/1500636ECDD0A08C) [https://open.spotify.com/artist/4mO4aGO6u29UyR6XLZR9XW?si=iitJ2fB5Q7yp_lf16uXFAA](https://open.spotify.com/artist/4mO4aGO6u29UyR6XLZR9XW?si=iitJ2fB5Q7yp_lf16uXFAA) [https://www.930.com/e/the-new-pornographers/](https://www.930.com/e/the-new-pornographers/) "Over the past 20 years, The New Pornographers have proven themselves one of the most excellent bands in indie rock. They have released nine studio albums, including their classic debut Mass Romantic and their latest 2023’s Continue as a Guest, which marked their debut for Merge Records. They’ve constantly offered new sonic surprises with every album, and have established themselves alongside modern luminaries like Yo La Tengo and Superchunk when it comes to their ability to evolve while still retaining what made them so special in the first place. Of the newest record, New York Magazine lauded, “The New Pornographers are a massive unit bursting with unique and intersecting talents…the band’s ninth album serves another helping of their signature dish.” The band's new single "Ballad of the Last Payphone" is out now with a new full-length album slated for release in 2026 – more details to come. Critical acclaim for The New Pornographers: “Over the course of their 20-plus-year career, the New Pornographers have often specialized in catchy ambiguity. If leader Carl Newman was just a machine cranking out power-pop tunes, it would get boring. But there’s also a lot of mixed emotions going on under the surface of their studiously nuanced pop-rock formalism—like if Cheap Trick was as quick-witted as Steely Dan, or the Romantics were as thoughtful as R.E.M.” - Rolling Stone “Pure, blissfully irresistible power pop” - NPR Music “[The New Pornographers] make catchy, sophisticated alternate-universe hits.” - Stereogum"

**Do you want to play and grow with a band, without the commitment of starting a band? Join us for our Blues Jams. Great place to network with other musicians.** \*\*$10 for at the door\*\* \*\*Free for Singers and Drummers\*\* **\*Members Get in free and receive other benefits\*** **[Become a Member](https://patreon.com/DoctorStrings?utm_medium=unknown&utm_source=join_link&utm_campaign=creatorshare_creator&utm_content=copyLink)** **Beginner to Pro Blues jam 21+ only, BYOB. Every Thursday.** This is a smaller more practice focused event at my shop. **Open to everyone and is a learning experience for most.** Just bring your instrument(Electric), no need to bring an amp we have all of that. Do not bring a pedal board with a bunch of pedals. The amps are dialed in for blues, trust me it's all there. Drums are here already, very basic kit. If you want to bring cymbals or any other drum gear, please show up early to set up. Also please be aware that other people are going to play the kit as well.

Ted Garber is a genre-bending multi-instrumentalist whose “BluesAmericanaRock” combines classic showmanship with a captivating singer-songwriter sensibility. His smokey, bluesy vocals, howling harmonica riffs and screaming guitar licks take us on a diverse musical journey from the Big Apple to the Big Easy, hovering in the Mississippi Delta before heading South of the Border. This is part of Montgomery County Parks Acoustics and Ale series. Bring a chair.

This is a great class for beginner to intermediate players looking to get into bluegrass. Students will learn the basic chords and melody of one or 2 classic Bluegrass songs and how to approach playing them in a jam setting. Over the course of about an hour the class will play the tunes several times as a group exploring different possibilities for kickoffs, solos, endings and more. At the end of the class we open up the jam! Justin plays guitar and banjo with Cherry Blossom Special and runs jam sessions along and runs jam sessions along with mandolinist Nick Cameron and fiddler Mari Carlson. He has been teaching guitar, banjo and mandolin in Takoma Park since 2012. This class was designed to give people an affordable entry point to Bluegrass music, and help grow the community. The class is $30 Register [Here!](https://checkout.square.site/buy/GUSSUYYW5UMKDMCDV4CQBOBL)

The Alliance is part of the Greater Central Ohio Chapter of the Barbershop Harmony Society. We are an all-voices chorus dedicated to providing an inclusive environment for all those who love to sing, regardless of their race, gender identity, sexual orientation or musical background. The Alliance is the first and only all-voices barbershop chorus in Central Ohio. **Who:** Anyone with a passion for singing at a high level. Previous barbershop chorus/quartet experience not required. **When:** The Alliance rehearses weekly on Thursdays from 7pm-10pm. **Where:** Lord Of Life Lutheran Church: 2480 W Dublin Granville Rd, Columbus, OH 43235 To become a full member of The Alliance, we welcome you to start by visiting us for a few rehearsals to experience the group and sing with us! Then, you may begin the 2-part audition process for membership: the assessement, and audition. We strive to make our auditions as stress-free as possible to help you let your best singing self shine.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** TBD **YouTube Link** TBD