u/JazzCabbage78

Sounds very like Wintersun in many ways

Examples:

Kingsbane - (1991) Demo
Power of Omens - Eyes of the Oracle (1998)
Greyhaven - Greyhaven (2000)
Fates Warning - Awaken the Guardian (1986)

The Sound:

Very progressive, operatic / soulful vocals in the high range, keyboards welcome, great hooks, cool vocal runs over dissonant and melodic riffs. 80s and 90s production. Nothing past 2000 preferably.

I've tried most of obvious recommendations, so I'm looking to the experts for deep cuts, hidden albums and demos! Thanks

Lord of the Rings-esque epic soundtrack from a metal track. All the metal instrumentation has been removed leaving behind just the orchestral and synth arrangements.