Solution

As indicated by the album cover your task is to find the name of track number 18. The normal buttons do not work very well and the player turns off if you do something wrong so getting to track 18 is not easy. You can either just brute force it and try around until you figure it out. This is maybe the easiest way but what the buttons do is this: The TA button multiplies the last digit of the track number with 13 and depending on your EQ setting does different modulo: EQ JAZZ: Modulo 10 EQ FLAT: Modulo 9 EQ ROCK: Modulo 8 EQ MEGA BASS: Modulo 7 This is then added to the first digit, if there is any. You can also use next and previous, both add one to the track but each can only be used once and previous only works in MEGA BASS, and next only works in JAZZ. One solution is this: Power on Switch mode to CD Set EQ to JAZZ Press TA twice to get to track 9 Press next to get to track 10 Switch EQ to MEGA BASS Press previous to get to track 11 Switch EQ to ROCK Press TA once to go to track 15 Switch EQ to FLAT Press TA twice to get to track 18 The track title is sacred convent