As retro as it gets without going antique.

Frank Sinatra - Studio Outtakes
Capitol Outtakes [no label, 1CD]
Rehearsal takes, alternatives and outtakes between 1955 and 1960.

Sinatra was no slacker in the studio - while stopping after a few bars was not uncommon (for example Willow Weep For Me, Where Or When), Sinatra was not over-awed by conductor Nelson Riddle that the singer won't stop Riddle right in the middle of the take if he felt it wasn't going well. Even the popular I Got Plenty O' Nuttin' proved to be quite a challenge. And there are some humorous moments as well - on She's Funny That Way, after singing "I got a woman, crazy for me/She's funny that way," Sinatra ad-libs: "She's nuts!"