The accounts are a way for musicians to hold themselves accountable for consistent, productive practice and to receive feedback from other musicians. They are also an archival tool, a way to track progress over time. Practicing, long an activity completed in solitude, with only a metronome and tuner as company, has now become its own sort of performance. Playing to a virtual audience has become one of the few remaining incentives for musicians who are otherwise holed up at home, away from their schools, orchestras, and teachers. – The New Yorker