You can control bp1, bp2, bp3 in console, such as bp1.color("#FF2870")
As to those elements that converted from Audio tags, ypu can control them via it's original CSS selector, such as document.querySelector('#bplayer4').title = "whatever you want"
*Allrights of music used in DEMO are reserved by their author*
Whisper: Loopliness is created by myself 😂