BOB pdxdjazz and Jer engelbach,
Thanks for the response.
Yes, I referred to the Gerry Mulligan and Johnny Hodges version.
-- Well, I actually found and bought probably a reissued one in "Complete Recordings 1959-1962) from Apple's iTune. But I believe it's the same version as in "Mulligan and Hodges" album.
This post caught my eye because I knew Gerry Mulligan's song Night Lights is really beautiful. This song may be almost forgotten by many but I believe it'd be nice if this song would be included in all fake books.
As for the key, it sounds like being in key Gb in some part too.
And I think this floating key and irregular 9 bars in B section make this song somewhat nicely mysterious as well.