"Sierra Madre del Sur" (accordion EASY). Music by Wolfgang Roloff. Digital Sheet Music & Digital Playback. Contenet: In Bonus Files: 2 PDF files of sheet music (for SOLO performance and for performance with playback), 2 mp4 HD video files for best practice (1 melody video track and 1 playback video track). In Files: 1 melody track mp3 and 1 professional backing track (playalong, playback) mp3. IF YOU WILL HAVE SOME PROBLEMS WITH DOWNLOADING OR ANY OTHERS PROBLEMS, DON'T PANIC PLEASE, JUST LET US KNOW VIA "CONTACT" FORM AND WE WILL SEND YOU YOUR PURCHASE VIA EMAIL. PLEASE REVIEW MUSIC TRACKS BELOW (just click the "play" button).