The Luna Heartsong Grand Concert Acoustic Electric Guitar With USB is another Luna innovation, sparked by asking players what would facilitate their creative process. What Luna heard is that flashes of creativity do not always happen at opportune times and inspiration is sometimes lost. Luna is using Fishman's plug-and-play system with a USB output and built-in tuner that allows a player to capture their creativity with maximum convenience. The Luna Heartsong Grand Concert Acoustic Electric Guitar With USB is further distinguished by its superb tonal quality, distinctive treble/bass clef sound hole rosette, select spruce top, mahogany body and rosewood fingerboard.