( ( "C: V7/V/V" ) ( "A" "C#" "E" "G" ) ( "Null" "1" "32b. HOW TO SPELL THE TOP CHORD IN A SECONDARY DOMINANT CHAIN" "Find scale-step root at end (bottom) of chain. Transpose P5 up and find each root until top V7 or vii°7. Spell top V7 or vii°7 in scale with new tonic that = chord root immediately below it." " " ) )