Contrabass oboe Baroque composers. This apparently was an oboe-type instrument in the bassoon range. It had, nonetheless, a distinct tonal quality of its own. Richard Strauss states, in his edition of Hector Berlioz's "Treatise on Instrumentation", that its tone "...had not the slightest similarity with the low tones of the bassoon." Despite this distinction, the contrabass oboe never became popular or widely used, and few remain today. Contrabass oboe The contrabass oboe is a double reed woodwind instrument in the key of C or F, sounding two octaves or an octave and a fourth (respectively) lower than the standard oboe. Current research,
Oboe da caccia, Baroque antecedents of the cor anglais. Even less common is the bass oboe (also called baritone oboe), which sounds one octave lower than the oboe. Delius and Holst both scored for the instrument. Similar to the bass oboe is the more powerful heckelphone, which has a wider bore and larger tone than the baritone oboe. Only 165 heckelphones have ever been made. Not surprisingly, competent heckelphone players are difficult to find due to the extreme rarity of this particular instrument. The least common of all are the musette (also called oboe musette or piccolo oboe), the sopranino member