r - repeat mode [r-----] (Repeats the playlist after reaching the end.)
    z - random mode [-z----]
    y - single mode [--s---] (Only plays a single track and then stops.)
    R - consume mode [---c--] (Removes the current track from playlist after reaching the end.)
    x - crossfade mode [----x-]

For more info, visit https://wiki.archlinux.org/title/Ncmpcpp