Soundtrap is the first online collaborative music recording studio that you can use with iOS, Android, Chromebook, Mac and Windows. What Soundtrap aims to do is not only create an easy to use (and even easier to access) Digital Audio Workstation but also to give the opportunity to turn the creative process into a social one. With Soundtrap you can share your projects with anyone and collaborate and edit recordings with people around the world.
If you're a music teacher, it's a great way to collaborate and make songs. It's great for students who struggle with writing to record their thoughts and speak their stories. It can be used it for podcasting connections with multiple classes where questions are posted by students and teachers. The video collaboration really also helps with that.