Sounds Unheard Of! (subtitled
Percussion & Guitar!! Shelly Manne!! and Jack Marshall!!! In a Spectacular Demonstration of Musical Daring and Brilliant New Stereo!!) is an album by drummer
Shelly Manne and guitarist
Jack Marshall recorded in early 1962 and released on the
Contemporary label. The album was produced as a
stereo test and demonstration record to be used by hi-fi enthusiasts to test the performance of their
audio systems. The duo followed this with another release in 1966 on the Capitol label titled
Sounds!.