FRIEND'S LINK
8notes :Free Sheet Music
All Guitar Chords :Chord finder, including split chords and chord variations. Also features standard and exotic guitar scales.
Chordie Guitar Chords :Guitar chords and guitar tablature made easy. Chordie is a
search engine for finding guitar chords and guitar tabs.
Piano chord Guide :On this site you can learn the chords on the piano (or keyboard, synthesizer) plus the theory behind.
chordbook.com :Virtual Guitar
Chordbook Scales and Tuner