A_B_A_C_A_B was a method used to remember the original sequence of the song when it was in it's embryonal state. "A" was the verse, "B" was the chorus, and "C" was the bridge. So the original version went verse, chorus, verse, bridge, verse, chorus. However that sequence was later changed, but the name stuck. I am almost sure the lyrics were Mike Rutherford's.
A_B_A_C_A_B was a method used to remember the original sequence of the song when it was in it's embryonal state. "A" was the verse, "B" was the chorus, and "C" was the bridge. So the original version went verse, chorus, verse, bridge, verse, chorus. However that sequence was later changed, but the name stuck. I am almost sure the lyrics were Mike Rutherford's.