Sequence of 3 Metamorphoses

There are 2 possibilities here - 014 and 041
     (all other combinations being the result of starting elsewhere)

The 401 sequence
If we start on the TONIC C⁶, which changes (with 4) to Am⁷,
     the next would be Dm⁶(which remains the same with 0),
          then back to Am⁷which changes (with 1) to Am^-6,
then Em⁷, which changes (with 4) to G⁶,
     then Dm⁷(which remains the same with 0),
          then back to G⁶which changes (with 1) to G⁷,
     producing a 6-chord extended Swing from C⁶to Em⁷
          composed of ((C⁶ Am⁷- Dm⁶- Am^-6/Em⁷ G⁶- Dm⁷- G⁷))
               which can be repeated indefinitely,
     followed by C, chord of rest.

     To see theVoice-leading

The 041 sequence
If we start on the TONIC C⁶, (which remains the same with 0),
     the next would be G⁷which changes (with 4) to Bm^-6-5,
          then F⁺⁷which changes (with 1) to F⁶,
then C⁺⁷, (which remains the same with 0),
     then F⁶which changes (with 4) to Dm⁷,
          then G⁶which changes (with 1) to G⁷,
     producing a 6-chord "double" Swing around C,
          composed of ((C⁶ - G⁷Bm^-6-5- F⁶/C⁺⁷ - F⁶Dm⁷- G⁷))
               which can be repeated indefinitely,
     followed by C, chord of rest.

     To see theVoice-leading