"Playing Erhu: Bridging the Gap" was written for English readers who are interested in learning how to play the erhu, but could not find any erhu instruction books in English. The book app covers:

- Assembly of the erhu
- Reading staff and jianpu notation
- Fingering charts for all common keys
- Music symbols, terms, ornamentation; Exercises in staff and jianpu notation for each key
- Annotated regional folksongs in staff and jianpu notation for each key
- Recordings of all music found in this book as performed by the author