Alt-Rock is a genre of rock music that emphasizes the use of acoustic instruments over electric ones.

It's often seen as a more experimental and underground variety of music, compared to mainstream rock. Some of the best-known alt-rock bands include Radiohead, The Velvet Underground, The Pixies, and Nirvana. They often incorporate elements of alternative rock, punk, and psychedelia into their music, creating a unique sound that's hard to pigeonhole. Alt-Rock is often fast-paced and energetic, with lyrics that focus on personal experience and introspection. It's a genre that's been growing in popularity over the past few years, and there's no doubt that it has a lot to offer music lovers.