From the classical side:
Mozart
Wagner
Holst
Copland
Joplin
Ravel
Jazz:
Maynard Ferguson (fusion)
Nicholas Payton (trumpet)
Kenny Garrett (sax)
Cyrus Chestnut (piano)
Wynton Marsalis (trumpet)
Ellis Marsalis (piano)
Glenn Miller (swing)
Etc:
Enya
Mike Oldfield (Tubular Bells)