Featuring 10 well-known favorites, this trio collection printed in score form is available in four key-compatible books for performance by a wide range of like or mixed instruments. In places where less-than-ideal ranges occur to achieve interchangeability among instruments of the same key (i.e. Bb clarinet or trumpet, C flute or oboe), much of the material is written in octaves to make it more practical for all. The writing style is largely contrapuntal to enhance musical interest and educational value.