Music Teacher's Helper (MTH) is much more than a website builder. It offers full featured studio administration for music teachers: Student Administration (with practice log and lending library), Calendar, Invoicing, Reports and Website.
Parents and students get their own accounts so they can interact with the teacher and pay invoices.
MTH is the big dog in this small niche, it's been around for over a decade and has a team of over two dozen people behind it. It also received a full face-lift recently, so it looks nice and polished.
Website Address Example: mywebsite.musicteachershelper.com
Conclusion: There's a bit work to get the most out of MTH: you need to enter all of your student data in and instruct the students and parents on how to use it. But once you get the ball rolling you may wonder how you ever lived without it.
Should I buy? If you want all the bells and whistles for your Music Studio, MTH will fit the bill nicely - but if you only want a presentation website, you're overpaying.
There isn't a free version, but you can try it for free for 30 days (no card required)