![rob knopper on Twitter: "playing an offstage snare drum duet in tosca. i'm using my old clevelander drum and ben is using his slightly older drum from the civil war. https://t.co/xqTa3gWDNH" / rob knopper on Twitter: "playing an offstage snare drum duet in tosca. i'm using my old clevelander drum and ben is using his slightly older drum from the civil war. https://t.co/xqTa3gWDNH" /](https://pbs.twimg.com/media/DrPVOGzU8AAYTUm.jpg:large)
rob knopper on Twitter: "playing an offstage snare drum duet in tosca. i'm using my old clevelander drum and ben is using his slightly older drum from the civil war. https://t.co/xqTa3gWDNH" /
![06: Rob Knopper: Percussionist, Metropolitan Opera Orchestra and AuditionHacker by Entr'acte with Julia 06: Rob Knopper: Percussionist, Metropolitan Opera Orchestra and AuditionHacker by Entr'acte with Julia](https://d3t3ozftmdmh3i.cloudfront.net/production/podcast_uploaded_episode400/8249576/8249576-1601388056051-f4580f615d2d.jpg)
06: Rob Knopper: Percussionist, Metropolitan Opera Orchestra and AuditionHacker by Entr'acte with Julia
![Percussion Master Class with Gregory Zuber, Rob Knopper, Steven White - MET Orchestra Musicians Master Classes | Lessonface Percussion Master Class with Gregory Zuber, Rob Knopper, Steven White - MET Orchestra Musicians Master Classes | Lessonface](https://www.lessonface.com/sites/default/files/styles/premium_product/public/product-images/1143182593-1920x10802.png)