Once you’ve become proficient on your instrument, you can begin to memorize music. Maybe you need to do it for a performance, or marching band, or just for fun. Depending on the person and difficulty of the piece, the amount of time to memorize something varies. One way is to memorize the fingerings, the notes, or to memorize a picture of the sheet music. If you play multiple instruments, it might be helpful to play your piece on each one or if you try to write out the piece from memory. The most important step is repetition. The most ideal form of memorizing music is muscle memory where you don’t have to even think about it. I’ve found that it is easiest to memorize music that you enjoy. Good luck!