Voicegram by Sayspring - Record and share conversations with Alexa from the browser
Flowkey - The easiest way to learn piano with your iPhone or iPad
Recordium - Recordium is a powerful yet elegant recording app designed for iPhone, iPad, and iPod Touch.
Yousician - Learn to play music at home, at your own pace
Audio Memos - Audio Memos is a voice recorder for the iPhone and iPad.
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.