sry but if you mean that harmony solo, its done by laiho.
best solos:
kevin moore - take the time (best of all), under a glass moon
jordan rudess - solitary shell (piano), beyond this life, fatal tragedy
jens johansson - many... perhaps legions or elements
janne warman - children of bodom, chokehold
sverd - all those fucking great piano solos (and other solos)
Jordan Rudess in DT's "Fatal Tragedy", at about 3/4 of the way through the song. It just has cool bends with the damn pitch ribbon that he can't seem to leave alone, and he's fast as hell on those keys.