Link reference:
http://yano-fan.music.coocan.jp/yanoso-sentai.htm#se5
The scan of the back jacket shows the arrangement credits which were missing in the original albums.
As for the CD Dengeki Sentai Changeman MUSIC COLLECTION (COCC-13487), Columbia Orchestra seems to not be credited for the performance in this album. But if it appears in the original releases, I think I can add it here, no?