Detour - Immersive audio walks, now in 17 cities
guitarLayers - guitarLayers is a professional macOS guitar learning software.
Urban Walks - A nicer way to explore New-York
Fachords - Fachords is an online site that provides many resources that you can use to take your guitar skills to the next level.
yapQ - Turn your smartphone into an audio tour guide
TrueFire - The Best Guitar Lessons Online Fast. Easy. Fun.