UPDATED: Reset Plays v2.0
This script will reset the Plays, Last Played, Skips, Last Skipped, Remember Playback Position and Played properties of the selected tracks to default “never played” values. Music's own "Reset" command in a track's Info window may not be as thorough.
This latest version makes accommodations for macOS 10.15 Catalina and the Music app.
More information for Reset Plays and download is here.