@negativepid As for today, I am still carrying my music in MP3 format and I love it. I have a dedicated SD card on my phone and use an MP3 player app:
#poweramp . I can carry thousands of songs and sort them by album or by artist (and brag in front of everyone who is willing to talk about music) and don't get the annoying interruptions. But still miss those late 90s where I found Napster. Those were the days!