Make some noise with these Micro:Bit Audio products!
The Kitronik :KLEF Piano lets you create your own masterpiece with a full octave keyboard and up/down keys which allow you to switch octaves.
If you are more interested in outputting sound, you can use the Kitronik Audio Cable. It can output music or general sound from the BBC micro:bit to headphones or speakers. Need your own speaker? The Kitronik MI:Sound Speaker Board for the BBC Micro:Bit features volume control and an easy access on/off switch.
For an E-Textiles project, the Electro-Fashion Sewable Buzzer emits a single tone when connected to a 3V power supply.