Answer:

marches

AnswerCrossword Clue
MARCHES"El Capitan" and kin
MARCHESCamp drills
MARCHESFrederic and Florence.
MARCHESPieces of music.
MARCHESJo, Meg et al.
MARCHESParade music
MARCHESSousa output
MARCHESSousa products
MARCHESSousa compositions