interesting links

general

Virginia Tech Multimedia Music Dictionary

Mutopia: Online scores

Reference tones: A440, c" and e'

 

THEORY

Musictheory.net: Many resources and tutors

Key signature drill

7th Chord Construction Drill

7th Chord Recognition Drill

Secondary Dominant Construction Drill

 

Ear TRAINING

GNU Solfege: ear training software

 

Music typesetting

LilyPond