Tickle those ivories!
Man Plays Ragtime Song On Modular Keyboard As Friend Removes Keys

This is ‘The Detachable Rag’, a video of musician Jordan Ruddess performing a ragtime song on a Pocket Piano (a modular 88-key electronic keyboard designed for ease of transport) as his friend Maddi removes octave segments of the board, leaving him with fewer and fewer keys on which to play, until he’s down to only three. An impressive performance, but I’m afraid I can only award Jordan 4/5 stars on account of missing a golden opportunity to end with the Jaws theme.