Alla Voskoboynikova, Daniel Schene, Susan Lutz and Daniel Kuehler perform “Galop-Marche for Eight Hands” by Albert Lavignac during last Thursday’s All-Steinway Extravaganza.

Alla Voskoboynikova, Daniel Schene, Susan Lutz and Daniel Kuehler perform “Galop-Marche for Eight Hands” by Albert Lavignac during last Thursday’s All-Steinway Extravaganza.
Alla Voskoboynikova, Daniel Schene, Susan Lutz and Daniel Kuehler perform “Galop-Marche for Eight Hands” by Albert Lavignac during last Thursday’s All-Steinway Extravaganza.
Alla Voskoboynikova, Daniel Schene, Susan Lutz and Daniel Kuehler perform “Galop-Marche for Eight Hands” by Albert Lavignac during last Thursday’s All-Steinway Extravaganza.
The annual overnight music camp features an immersive four days of singing led by some of the world’s best-known names in a cappella music.