Alabama band director tased and arrested after refusing to stop post-game performance

Band director arrested after refusing police orders to stop band from playing following high school football game in Alabama.
Altercation occurred between band director, security personnel, and police when director refused to stop performance.
Director was tased, taken to hospital, and charged with disorderly conduct, harassment, and resisting arrest.
Incident captured on police body camera video, prompting investigation and calls for police reform.
Band director's lawyer plans legal action against police over "abuse of power" and violation of civil rights.