Hmm wow Dragonsong Lyrist is pretty terrible. song of strength is decent, at least moral bonus isn't that common so it won't be wasted most of the time, greater dragon song DCs seriously suck so by default suggestion and fear suck. Suggestion is strictly worse than bard suggestion in every possible way so there is that, fear song only affects those with less hd than you between that and the DC it is worthless, flight for 3-5 minutes at level 10 min that affects only 3-5 people sucks but at least it is your second best ability, healing song is insulting for a level 12+ character.
I am on the fence with prerequisites as they are all reasonable and there is only one feat so I think this one should be 2/2, on the other hand concentration shouldn't be used with a bard but as said going in with sorc/bard or something else is also a reasonable entry point.
5/20 still sucks but those are easy entry requirements.