Luminous was so different from a development standpoint. There never really was confirmation on just how extensive the musical rewrites were, but I think Heartbeat Symphony was always going to lead. Beating of our Hearts and One Heartbeat were most likely recorded as pop tracks, the post show versions of each. Seems like they then decided which they would use for the finale, and had it recorded with deliberate crescendos for pyrotechnic cues.
Eric Tucker was brilliant in his work on Luminous, so that’s also a factor. Brilliant fireworks design will usually just *work* regardless of how the song is recorded because a good designer will know how to supplement the emotion of the audio in a show. This is what took I:RoE from one of the greatest compositions in the last 100 years to one of the greatest pieces of entertainment ever. No, I’m not biased.
It’s like poetry, it rhymes.
When it’s done right.