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In experimental music, this can mean "preparing" an instrument (like a piano) by inserting objects to alter its sound.

To help more specifically, could you clarify this is for (e.g., a specific music school audition, a software project, or a design task)? Musical Terms | Youth Music 23103.rar

Identifying key sections, rhythms, and dynamics. In experimental music, this can mean "preparing" an

Ensuring the work is ready for an audition or recital, which often involves a "mock rehearsal" or a hearing before faculty. In experimental music