I'm not a musician, but Apple's Music Memos app is such a useful app that I was sad to hear it was shutting down.

Released in 2016, Music Memos is designed to make it easy for anyone to record short snippets of songs. It features a built-in tuner and the ability to quickly add backup music. The best part is that there is no learning curve; just hit the record button and you have your own extremely simple recording studio. I’ve used it to record a number of my own songs, which will thankfully never be released.

Even big musicians use quick iPhone recordings to jot down ideas. Famous rock guitarist Eric Clapton once told Rolling Stone that he records snippets of songs as memos on his phone. Taylor Swift also said last year that she records voice memos in the middle of the night when she comes up with ideas for a song.

"My phone has all these three-second memos of me mumbling what I think might be a good idea, and if you read them back, 97 percent of them are really, really bad," Swift said in a TV interview. "It sounds like a grizzly bear," she added. "It doesn't even sound like a human."