Luma-1 is an authentic recreation of the iconic LM-1, originally designed by Roger Linn in 1979 and now brought back by Joe Britt (check the creation story at Roger’s site). That allows for hot-swappable sample storage, whether it's the original bit patterns of the LM-1 voice EPROMs, other sample-based drum machines (such as the DMX or DrumTraks), or totally new sounds.