In: [A] $VP
VP: i | IV | bVI | bVII |
CP: I | vi | IV | I |
Vr: [A] $VP $VP
Ch: $CP $CP
Link: [A] $VP
Br: I | vi | I | vi | I | V | V | IV | IV | 
S: [C] $In $Vr $Ch $Link $Vr $Ch $Link $Vr $Ch $Br $Ch $CP $CP $CP $CP $CP I | vi | IV | I |