A music teacher.
A Musician. or a percussionist if they like, play percussion instruments
forceps
If its a stringed instrument like a violin or guitar, they're called a luthier. Don't think there is any special word for trumpet maker or clarinet maker. Trumpet artisan might work.
A quintet.
A cappella
drums
Instruments that are blown into are either woodwind instruments, double reed instruments, or brass instruments, with the single exception of a harmonica, which is in a class all its own.
A Cappella
A recorder
Id call them a musical group or 'band'.
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