-4' | -4 -6' +7 | -6 ob4 +6 ob5 | -7 ob6 +5 | -5 -5 | +5 -3' -3 | ob5 +6 +8' -6 +7 | -6' -8 od7 | -3 -3' | +5 | -5 -5 -5 | +5 | -3' | -7