digital song catalog for karaoke

karaoke: popular music remixed or arranged to remove the lead vocals, and played back for entertainment, allowing others to sing the lead part

renewal; update

to renew; to update

to use / to employ / to make use of, to apply / to spend

contents, table of contents

electron / (attributive) the quality of being electronic

a book / a script; a scenario / source; origin; root

just

use one thing for many purposes / work someone hard