A few. Umm one piano and one upright bass, plus one electric keyboard, and an accordian. There is also a french horn, a clarinet, a saxiphone and a set of drums. I'm thinking 6 acoustic guitars, 2 electric basses, and maybe 8 electric guitars but I can't be certain. Probably something else I've forgotten. Husband is a musician, son is a musician, and my daughter is a musician. So probably 25 or so plus all the recording equipment and amps.