More recently Hayes has been involved in the Brighton-based improvisational instrumental psychedelic band ZOFFF (previously known as Light Specific Data or LSD-25) and with MUMMY (a duo with his wife, the singer Jo Spratley).
In recent times, Hayes has collaborated with the Brighton-based improvisational instrumental psychedelic band ZOFFF (previously known as Light Specific Data or LSD-25), and also with the musical duo MUMMY, which he formed with his wife, the vocalist Jo Spratley.