Here are my purely subjective (and probably worthless!) ratings on a five-point scale from 1(least) to 5(most):
| Difficulty | Complexity | Physical | Meditative |
|---|---|---|---|
| 4 | 2 | 2 | 3 |
A version is available performed by De Danann
A source for the music is "A Jacket of Batteries (CMCD 066) "