a misconception is that Levites are just musicians.
if ya looks in the OT, ya see that the levites were the WORKERS of the church(temple)
while everyone else did what they were to do(smithing, textiles, horticulture, herding, etc.)
the tribe of Levi was to do nothing but see to needs of the temple. Clean, maintain, provide service for, sing, play, ursher(lol)...etc. Special land would be set aside just for them, and they were to be taken care of via the offerings brought to the temple.