Music paper (all shapes and sizes) – Click on the picture below.
Composers biographies – Click on Beethoven.
Printable Bass cleff flashcards – Click on the bass clef.
And for printable Treble Clef flashcards – Click on the treble clef, of course. (However, note that there is a mistake on the very first card – it should be a treble clef high C instead of a bass clef high E.)