This is a super fun instrument bingo game where each column represents a different instrument family! B=Woodwinds, I=Strings, N=Brass, G=Keyboards, O=Percussion. You get a 33 page PDF document with: 24 Bingo cards, 38 Instrument Calling cards, a Bingo Game sheet for the backs of the cards, and a Reference page listing all 38 Instruments represented in the game. Enjoy!!!