Studies for Alto Saxophone and Piano (Études pour saxophone alto et piano) Op. 188 by Charles Koechlin. Billaudot, 1970, SS, 60 + 27 pages. Few sets of etudes have piano accompaniment and fewer still have been recorded. These were written by French composer Charles Koechlin (1867-1950) in the the period 1942-44 with each piece dedicated to a specific technique or sound. Included in the fifteen etudes are both intermediate and advanced pieces.