TrueFire

Songsterr

songsterr.com

Ultimate Guitar

ultimate-guitar.com

Chordify

chordify.net

GuitarTuna

yousician.com

Virtual Piano

virtualpiano.net

Flat

flat.io

Musicca

musicca.com

flowkey

flowkey.com

ChordU

chordu.com

Fender Play

fender.com

Tomplay

tomplay.com

Guitar Tricks

guitartricks.com

Scott's Bass Lessons

scottsbasslessons.com

TalkingBass

talkingbass.net

Guitar World

guitarworld.com

BassBuzz

bassbuzz.com

Guitars101

guitars101.com

Pickup Music

pickupmusic.com

JamPlay

jamplay.com

toplayalong

toplayalong.com

Muzician

muzician.com

ArtistWorks

artistworks.com

Chordly

chordly.io

Fretboard Fly

fretboardfly.com