For example in 'hi, i'm steve'... for the mailwoman's variation of the "that's the way i like to live my life" jingle there's a little keyboard fill that comes right after "live my life". Was that fill entirely written out note-by-note beforehand?
that was added very late in production. like on the last day probably. that is what i would call an 'auxiliary spice', i do it for songs too, basically it's during troubleshooting you notice parts where you're afraid it's too boring. so you throw something in to spice it up