Named rows

Some rows have traditional names:

Name / Description / Example	Audio
Rounds Bells in sequence from 1 to N 123456
Back Rounds Bells in reverse sequence from N to 1 654321
Queens Odds then evens 135246
Tittums Pairs separated by ⎣N/2⎦ Four bells: 1324 Six bells: 142536 Eight bells: 15263748
Whittingtons Odds down, evens up 531246