mqstout: I particularly enjoyed the X-2 songstress because it, like some other classes explicitly does not have a basic "Attack" command.
The Final Fantasy 3 (Famicom) bard also doesn't have a basic attack command, instead getting "Sing". However, it turns out that the command works just like "Fight", except that it only works if you have a harp equipped. (This can, theoretically, lead to a softlock; if you have no harps, no attack items, no way of getting more, and not enough CP to change to a different job, it becomes impossible to continue the game.)
Too bad original FF3's Bard is garbage, just like 2D FF4's. (At least FF5 *finally* made the job useful, only for the job and ability to be removed completely (along with other interesting abilities) in the next game.)