This is the first of two albums released in 2016 that consist entirely of the work J.A. Seazer did for Revolutionary Girl Utena. The "origination" part seems to be to do with these being tracks arranged and performed by J.A. Seazer and his theater group, contrasted to the "transformation" album where the arrangements were done by Shinkichi Mitsumune.

HQCD apparently means a special kind of material and production process designed to ensure higher quality in the audio on the disc. I can't confirm or deny this has any value, however, the tracks on the album have been 'remastered' for this printing and it does indeed make a difference, especially at very high volumes where the sound is somewhat cleaner. That having been said, it's not so drastic a change that you'd be likely to hear it without doing a side by side comparison to the original discs.

(Updated Dec 2024) Wow! We never stop learning! Turns out, there's a bonus disc you received for buying both of the Pharsalia albums through the popular Diskunion website! Thanks to JadeSabre for tracking this really cool bit of meta down! Here's a picture of the bonus disc, which features three original recordings of Seazer performances, roughly translated from the above article:

1. "End of the Century of Underground Imagination"
22nd Performance at Shimomaruko [Theater] Festa '94 Participation
Light Bulb Type Ammonite - Deep, our Spira Mirabilis Theater -
1994.2.10 (Thu) ~ 2.12 (Sat) Ota Ward Citizen Plaza * 5 stages
2. "Light Mosaic"
3. "Girl Collection"
24th performance Theater Set Hunger Magician Requiem
- Light, yes everything, its existence begins with a spark of light then disappears -
1994.11.10 (Thu) ~ 11.20 (Sun) Otsuka Man Studio * 11 stages

Why yes, of course you can download a zip of this bonus disc!!!!