Fibonacci to chord sequence

fibber.py

def fib_next(current, previous):
     return current + previous, current, int(oct(current + previous).strip('L')[-1])


scale = ['F', 'g', 'a', 'Bb', 'C', 'd', 'em7b5', 'F']

def runme(iterations=False):
    pattern = [0, 1]
    previous, current  = pattern
    n = 0
    while  len(pattern) < 5 or (pattern[:4] != pattern[-4:]):
        current, previous, pelem = fib_next(current, previous)
        print current, previous, pelem, scale[pelem]
        pattern.append(pelem)
        n += 1
        if iterations and n > iterations:
            break
    printable_pattern = []
    for p in pattern:
        printable_pattern.append(scale[p])
    print ' '.join(printable_pattern)
    print n

F g g a Bb d F d d a F g F g g a - sounds quite nice as it goes