To whet your appetite and keep your writing fingers limber, take a good look at the photo, or let a prompt settle in your mind. Set a timer for a reasonable amount of time, be that five, fifteen, or thirty minutes. Then start writing.
Think of a song that you love and write a story based on the title, a line, or a word within the lyrics.
Make a list of songs you remember from your childhood. Perhaps find a playlist from the time on digital music services or YouTube. Pick a favorite song and write about the first time you remember hearing it.
Write a post about where people can watch or participate in open mic events in and around your hometown.