GarageBand

GarageBand is the most ubiquitous piece of music creation software on earth simply because it comes pre-installed entirely for free on every single Mac, iPhone, and iPad sold by Apple. It is specifically designed to completely remove the intimidating technical barriers that usually prevent people from recording music. For absolute beginners who don't know how to play an instrument, it offers "Smart Instruments" on the iPad. A user can select a guitar, tap the screen with one finger, and the software will automatically play a perfectly timed, complex acoustic guitar chord progression. It also includes "Drummer," an AI-driven virtual session drummer. The user simply tells the software to "play a loud rock beat with heavy cymbals," and the AI generates the drum track instantly. While it looks like a toy, it actually shares the exact same underlying audio engine as Apple's $200 professional software, Logic Pro. A teenager can record a song on their iPhone in GarageBand, airdrop it to a professional studio, and the studio can open that exact project directly in Logic Pro to mix and master it for the radio.