Been at it for six months now, kinda slow, but I had some new stuff to learn like SVG and Web Audio API. Experimented a lot with AngularJS and React. Went back to Backbone.js and lost some time there. But good experience.
My hopes are high for this product.
Also if you have good experience in JavaScript overall, Backbone.js is fantastic. Combine this with Underscore/Lodash and Babel for ES6 and you have a good build system.
I'm also with you on Backbone there. Good job and keep on going.
Have you done any testing with real users ?
What exactly are your hopes for it ?
My aim is to first provide a complete web based music notation app. And ultimately a library of licks and phrases which users can utilize to aid in their compositions. Basically I've loads of ideas with this product. Build practice routines, i.e practice scales, maintain a practice schedule, etc. So yeah, lots of stuff I can build into this.
Other ways on the top of my head would be writing guest posts on other music related blogs or paying them to send it to their newsletters ....
You could also cheaply? target specific YouTube videos with your ad ...
Further, if you are new to copy writing for ads, cashvertising is a great book.