Crossword Clue:

from one stage to the next in sequence

AnswerCrossword Clue
STEPWISEFrom one tone to the next, in music
MOVABLEChanging in date from one year to the next.
SEGUESmooth transition from one topic to the next
THEASMLB team, familiarly (and what's missing from the sequence found in the answers to starred clues?)
EDWARDLEARThere once was an author from Britain - Who laughed at the poems he'd written - "Five lines to a verse - Is so very terse - I can finish 'em up in one sittin'."