Many builders are new to music, so here are some thoughts about what makes an instrument function better from a musical perspective.
1. Scale Length: This is the string distance from nut to bridge. The longer the scale the further the frets are apart. Lower pitch sounding instruments like bass guitars have longer scales. Higher pitched sounding instruments like ukulele have shorter scales. On the guitar to be able to make the necessary stretches between frets and form chords, the scale has been standardized to approximately 24" - 25". The center of the string between the nut and bridge is at the 12th fret (harmonic). Usually smaller guitars (Ex: 3/4 size) are not only physically smaller, but the scale it smaller too. These guitars are good for traveling or for players with smaller hands. Please share any thoughts you may have concerning Scale Length.