For Young Beginners

• John W. Schaum, Making Music At The Piano (all levels)

• John W. Schaum, Fingerpower (all levels)

• Faber, My First Piano Adventure or Basic Piano Adventures

For Teenage Beginners

• Faber, Piano Adventures Accelerated Course

• Wunderkeys for older beginners--pop tunes

For Adult Beginners

• Alfred's Basic Adult Piano Course

• Siskind, Jazz Piano Fundamentals

Beginner to Intermediate (in addition to method books)

• Schirmer, Selected Piano Masterpieces - Early Intermediate Level

• Schirmer, First Lessons in Bach

• Bach, Anna Magdalena Bach Notebook

• Palmer, The Complete Book of Scales, Chords, Arpeggios & Cadences

• Faber, Funtime and Big Time Collections

• My First Mozart, My First Beethoven

Intermediate to Advanced (just to get us started)

• Schirmer, Sonatina Album

• Bach, Inventions and Sonatinas

• The Giant Book of Intermediate Classical Piano Music

• Anthology of Romantic Piano Music, Anthology of Impressionist Piano Music, Anthology of 20th Century Piano Music

• Burgmüller, Czerny & Hanon -- Piano Studies Selected for Technique and Musicality

• Hanon, The Virtuoso Pianist In Sixty Exercises For The Piano

• Wunderkeys Pop Studies for Piano

• Hisaishi, Ghibli Best Stories

For Beginners

• Suzuki Violin School

• Barbara Barber, Solos for Young Violinists (later volumes for Intermediate to Advanced)

• Whistler, Introducing the Positions

Intermediate to Advanced (in addition to method books)

• Barber, Scales for Young Violinists and Scales for Advanced Violinists

• Franz Wohlfahrt, 40 Elementary Etudes for Violin, Op 54 and 60 Studies, Op. 45

• Trott, Melodious Double-Stops for the Violin

• Carl Flesch, Scale System for Violin