The answer would be eight-track sound recording.
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Answer:
“The reading of these documents enabled me to utter my thoughts, and to meet the arguments brought forward to sustain slavery; but while they relieved me of one difficulty, they brought on another even more painful than the one of which I was relieved.
Explanation:
Playwright
Director
Associate Director
Assistant Director
Choreographer
Associate Choreographer
Dance Captain
Set Designer
Associate Set Designer
Costume Maker
Costume Designer
Pattern Cutter
Associate Costume Designer
Lighting Designer
Associate Lighting Designer
Sound Designer
Associate Sound Designer
Musical Director
Hair and Wig Designer
Musical Director
Performer
Circus Performer
Voice-over Artist
Musician
Actor Musician
Cabaret Artist