I've been listening to 1-dimensional music for most of my life. You know, the flat kind that only moves forward in time. Only recently did I discover 2-dimensional music! It really adds depth to the sound, making chords sound more like ... chordinates?
You can almost chart the harmonies: perpendicular melodies intersecting at perfect right angles. It's hard to explain, you really have to experience it yourself.
Below is a piece of 2d music, taken from one specific album (around 20 years old now).

