feat: let the real firedrill roll… :)

style: simplify things a bit

fix: use one task group in case requests take longer than their note

fix: only play note and make request if its non-zero

feat: use task groups to play and send HTTP requests in parallel

fix: added markers to sync the line breaks in the chorus

feat: add lyrics, break them into syllables and sing along

style: use 4-space indentation

feat: refactor and print notes

feat: add naively converted Python version

chore: add arduino version of "Never Gonna Give You Up"