Score and Parts. Interruption Overture is the musical inverse of Bryant's Chester Leaps In. In the latter, a familiar theme interrupts angular, dissonant music, whereas Interruption Overture consists of a straightforward theme in Bb major repeatedly interrupted by dissonant chords and bursts of simple aleatory ideas. These techniques are intended to serve as educational tools in addition to their musical function, exposing younger musicians to a broader-than-usual musical palette. Interruption Overture is the musical inverse of Bryant's Chester Leaps In. In the latter, a familiar theme interrupts angular, dissonant music, whereas Interruption Overture consists of a straightforward theme in Bb major repeatedly interrupted by dissonant chords and bursts of simple aleatory ideas. These techniques are intended to serve as educational tools in addition to their musical function, exposing younger musicians to a broader-than-usual musical palette.