We've never had an original Mellotron at the Tiny Desk until now. Much like a Hammond organ, it's big, heavy and fragile. When they fired it up, with all its mechanical gears turning tape loops and moving play heads, the 15-year-old geek in me blissed out.
The Mellotron was a magical 1960s invention that predates sampling. It's a keyboard instrument, with each piano key triggering a tape loop — the sound could be a string ensemble, a flamenco guitar, a saxophone and so much more. Think about the flute sounds on The Beatles' song "Strawberry Fields Forever" and you get the idea.