New, used, rental fleet, and a lesson studio upstairs. Four businesses, one store. Mainframe wires them together and tells you which one actually made money this week.
Build my store →POS, rental fleet, lesson calendar, trade-in ledger — one dashboard.
Three chains that replace the trade-in spreadsheet, the lesson Google Calendar, and the rental contract binder.
Photograph the instrument, Mainframe pulls comps from Reverb + eBay, suggests an offer, prints a tag, and lists it the moment you accept.
Student books, teacher sees, parent pays. Monthly recurring, no-shows tracked, recital emails sent. The studio runs itself.
Rent-to-own on every student instrument. Mainframe tracks the fleet, bills the parent, and nudges toward upgrade at month 10.
Pulled from the 1,114,909 in the Mainframe catalog.