A metronome is a handy little tool that can help keep musicians on their rhythm. It's also easy to forget yours when you need it most. Don't worry, though. Google's got you covered. Now, when you type "metronome" into Google, you'll get what else? A metronome! You can adjust the BPM from 40 to 208. Once you pick a BPM and hit play, it will make a light knocking sound at that interval until you turn it off. It's a handy little tool to have if you don't want to download an entire app or carry a physical metronome around with you.