The 4-String Chordbox Blanks Workbook is the ideal companion for musicians wishing to quickly jot down ideas, chord charts, chord sequences, band arrangements and student work projects. The workbook features no fewer than 3,888 blank chord boxes or chord windows, with thirty six diagrams on each page. The format is also suitable for other 4-string or 4-course fretted instruments including:
 
Ukulele
Banjo
Mandolin
Tenor mandola
Octave mandolin
Mandocello
Irish bouzouki
Greek bouzouki
Cavaquinho
Tiple
Tenor guitar
Bass guitar
Domra.