My favorite music for work, which apparently none of my acquaintances understand π Canto Ostinato by Dutch composer Simeon ten Holt is an hour and a half of very strange music
: It consists of small musical phrases over a static rhythm, repeated many times, gradually evolving and developing. This change is often slow, but steady. That is, it is like putting an extremely slow melody on top of a rhythm. Such repetitions create a kind of hypnotic effect, probably immersing some in a meditative state.

