D'Addario & Company, Inc.

D'Chords is the quintessential hand-held guitar chord library brought to you by D'Addario &

D'Scales is a complete guitar scale and arpeggio library brought to you by D'Addario & Compa

Newly enhanced and redesigned by the minds at Audiofile Engineering (creators of D'Chords and Fi

Newly updated to support the latest iPhones and iOS 12, D'Tools (formerly Guitar Tools) is the u

Musical instruments can be easily damaged by large and rapid changes in humidity and temperature. No