Charley
British Library, 1077 g 47, songster 30. The best date I can at the moment give for J Evans and Sons is about 1815. This particular series of songsters, 34 of them, are full of mostly songs from the pleasure gardens such as Ranelagh and Vauxhall. They each have about 20-25 songs in them.

Will check my cant dictionaries for the 2 terms. Dandies of course were showily dressed OTT playboys of the time and at their peak round about then in London. There are numerous song titles that start with 'The Dandy .....' and a randy dandy seems pretty obvious.