Napster may be gone, CDs are a distant memory, and the radio has been replaced by Pandora, Spotify, or another streaming service. The Internet has changed the music industry completely. Photo by Galt Museum & Archives on The Commons
Compared to recording music, making a website to play your tracks is easy by comparison.
Not to mention, just getting your music heard, even if it is just for friends and family. Most people play music for fun, but even at that level there is a need to pay for gas, new music gear, and vehicle maintenance. Band websites are probably the easiest way to share your work on social media or collect email address for fan email newsletters, promote your gig, sell music and merchandise, and (depending on platform) collect analytic data. You and your band may not “need” a music website for your band, but it can make things a lot easier for communicating with fans, finding new gigs, or selling your music and merchandise.