Idioms based on music and song. Select an idiom for more details. Also try Music Idioms Quiz.
If musicians play in a jam session, they play whatever they feel like playing in an informal setting.
If you blow your own horn, or blow your own trumpet, you proudly boast about your own talents and successes.
If you change your tune, you change your opinion about something or your attitude towards someone.
If someone has to face the music, they have to accept the consequences of doing something wrong.
If you buy or sell something for a song, you buy or sell it at a very cheap price.
If you make a song and dance about something, you make a big deal out of, or a fuss over, something that isn't very important.
If something is music to your ears, it's just what you want to hear.
If you play it by ear, you don't plan ahead but you do whatever seems best at the time depending on the situation.
If you pull out all the stops, you do everything you can to make sure something is successful.
If something rings a bell, it sounds familiar or you think you've heard it before.