Guitars! is a vanilla-friendly mod that adds many guitar (and related) items! The main instruments introduced are guitars, which can be acoustic and electric.
The Guitars! menu is accessible through pressing the G key (default keybind) - the Guitars! menu lets you choose your guitar mode, chords to use in chords mode, and the scale to use for attack mode. Other useful keybinds from this mod include:
Guitars have two main modes, which are attack mode and chords mode:
Guitar enchantments can be obtained through the Luthier villager, which can obtain this role by being next to a Luthier Workbench. The Luthier has a chance to offer six different guidebooks, which can be combined with a guitar in a Luthier Workbench to enchant the guitar.

Guitars! is a vanilla-friendly mod that adds guitars that are both playable instruments and weapons!