Founded in 1997, Sheet Music Direct is the world's premier destination for digital sheet music. Sheet Music Direct allows musicians to view, purchase, download and print sheet music instantly. The Noteflight Viewer provides interactivity including playback, tempo control, transposition, variable note sizes and fullscreen viewing on any device. In December 2015, Sheet Music Direct launched PASS, the world’s first sheet music subscription, offering unlimited online access to 1,100,000+ pages of premium sheet music, plus 50% off all prints/downloads. In March 2016, Sheet Music Direct launched PlayAlong, the first mobile app to combine interactive sheet music, pro-quality backing tracks and powerful practice tools for thousands premium songs from the Hal Leonard Play-Along publications. Sheet Music Direct is an official, authorized and licensed service; every sale generates a royalty for the relevant publishers and songwriters. Sheet Music Direct is a division of Hal Leonard, the world's largest and most trusted print music publisher.