What always surprised me were the people who objected to "Faith of the Heart" because they insisted, "A Star Trek
theme needs to be an orchestral piece, not a pop song!" They didn't seem to realize that the TOS theme was very much written in the popular song style of the day, a pastiche of "Beyond the Blue Horizon" with a bossa nova rhythm inspired by "Begin the Beguine." Not to mention that the main melodic line was sung by a soprano in the second- and third-season arrangements. And of course Roddenberry wrote (bad) lyrics for it so he could get royalties from the sheet-music sales.