Spiral Tab

e----------------------------------------------------------------------------|
B----------------------------------------------------------------------------|
G----------------------------------------------------------------------------|
D-13-13-13-13-12-12-12-12-9-9-9-9-10-10-10-10--------------------------------|
A----------------------------------------------------------------------------|
E----------------------------------------------------------------------------|

e----------------------------------------------------------------------------|
B----------------------------------------------------------------------------|
G----------------------------------------------------------------------------|
D-13-13-13-13-12-12-12-12-15-15-15-15-17-17-17-17----------------------------|
A----------------------------------------------------------------------------|
E----------------------------------------------------------------------------|