http://www.annthegran.com This site, annthegran, has some free musical designs but the trombone is a pay item. Didn't see how much. Also, http://www.designsbysick.com/members This site has lots of musical design sets and today the are on SALE for $1.75 per set! One Designs by Sick you go to the top bar and click on designs and then go down to search designs. You can then type in Music or Musical and sets will come up containing those words. Good luck

http://softdrink.synthasite.com/otherdesigns.php