Here we have a playlist inspired by this wonderful MFMM Modern AU: http://archiveofourown.org/works/3470108/chapters/7616969

I am completely enamored with this piece and was compelled to make a playlist based on it. Modern!Jack strikes me as the kind of guy who has a penchant for some jazz and oldies. This is set towards the end of the first part of the series. I instantly pictured Jack & Phryne having a quiet dinner and swaying around his living area while listening to a jazz/40's playlist he'd put together. (Idk my mind kind of just wandered there after Jack got back from work that faithful day.)
There are two more recently released songs, so you'll have to suspend your disbelief a little further. But, minor details.

12 tracks