(1) On "Corycian Fire" from WOLFLIGHT: The ending seems to have a lot of people singing, mostly female with some male voices that don't sound particularly like Steve. Yet no one is credited with vocals on the track except Steve. I guess someone forgot to credit all the other singers?
(2) On "Inca Terra" from THE NIGHT SIREN: It took me several listens to realize that the male vocals at the beginning don't sound like Steve. Sure enough, the credits say Nad Sylvan does vocals on the track. Typically, the credits don't differentiate between lead and backing vocals, but I guess the lead vocals on this track are by Nad (and Amanda) rather than Steve.