Piano Trio - Level 5 - Digital Download SKU: A0.1106400 Composed by Bob Atwell. 20th Century,Chamber,Contemporary. 40 pages. Bob Atwell Music #705459. Published by Bob Atwell Music (A0.1106400). A challenging work for Piano Trio. It is a light humorous work in three 2 minute sections: Espresso, Milk, and Foam.