Sounds of the Delta: Blues and Field Recordings

The teacher explains that the traditional twelve-bar blues progression uses tonic, subdominant, and dominant harmonies in a fixed cycle guiding ensemble timing. She reviews how call-and-response phrasing in early Mississippi Delta blues originated in field hollers and work songs to communicate across outdoor distances. She explains that outdoor acoustic performances require dynamic balance adjustments so acoustic instruments remain audible alongside amplified field recordings without distortion. Worked example, with example figures: a lead acoustic guitar plays at 72 decibels while the speaker dial is dialed back to 68 decibels so the call-and-response transition stays crisp.

Each team uses their rehearsal feedback check sheet to make the rehearsal balance cue card, establishing the target playback time and the calibrated speaker volume level. Everyone tests instrument dynamics against their portable field playback speaker, and each student decides physical entrance gestures for their assigned measures in the revised performance score. The teacher circulates to evaluate sound balance, verify dial numbers, and time runs with a stopwatch.

Each student writes their individual balance check and visual cue note on an exit card and hands it in. The teacher pulls students whose notes show unclear dial levels or missing cues for a quick review before packing instruments. Next class, teams take their cue cards to the museum.