The modern stuff is loungey. None of it was written to be performed by anybody else. There are no decent arrangements that I can find (except for Elton John, whose piano writing is exquisite, if difficult). If you don't have synth strings and a drum machine, you can't hope to match the sound of the recording in any way. The music is just a bunch of repeated and slightly syncopated chords. Half the time, they don't even put the vocal line into the piano part.