Old song

a trifle; nothing of value.

See also: Song

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
The stream was still there, and singing the same sweet old song. You could hear it long after it was out of sight, in the gathering darkness, like an old nurse humming lullabies in the twilight.
Round went the wheel again to the old song, and the manikin once more spun the heap into gold.
Did you ever hear the old song 'Going to One Wedding Brings on Another?' I say, you will come to Belle's wedding, I hope."
Also, in the absence of an instrument, Michael would sing to the prompting and accompaniment of Steward's voice, who would begin by wailing "kow-kow" long and sadly, and then branch out on some old song or ballad.
In short, Jack, to go back to the old song I was freely quoting at dinner
Thus at least runs the old song which tells of his might.
"I shalt expect you by last train on Friday, in accordance with your letter: and, till then, I shalt say, in the words of the old song,
There's the Billets and the Drenkhards and the Greys and the St Quintins and the Hardys and the Goulds, who used to own the lands for miles down this valley; you could buy 'em all up now for an old song a'most.
But never mind; it's all in fun: so the old song says; --( sings.) Oh!
Every morning Emily Jane finds scraps of torn-up paper on the floor and reads thereon of "cruel hearts and love's deep darts," of "beauteous eyes and lovers' sighs," and much more of the old, old song that lads so love to sing and lassies love to listen to while giving their dainty heads a toss and pretending never to hear.
You wouldn't like your chany to go for an old song and be broke to pieces, though yours has got no color in it, Jane,--it's all white and fluted, and didn't cost so much as mine.
It was an old song, old as the breed itself--one of the first songs of the younger world in a day when songs were sad.