B1 – Upper Back Row
B2 – Upper Back Shrug
B3 – Middle Back Row
B4 – Wide Grip Pulldown
B5 – Narrow Grip
B6 – Lower Back
B7 – Wide Grip Pullup

Single Exercise Videos:

Dumbbell Upright Row (B11)
Cable Upright Row (B12)
      using a single wide bar (B12A)
Barbell Upright Row (B13)
      different bar design, additional angles (B13A)

Dumbbell Vertical Shrug (B21)
Cable Vertical Shrug (B22)
Dumbbell Rotating Shrug (B23)
Hexagonal Bar Shrug (B24)
Seated Shrug Machine (B25)

Seated Row Machine – high pivot machine (B31)
using a low pivot machine (B31A)
Seated Low Cable Row (B32)
Single Arm Dumbbell Row (B33)
T-bar Row (B34)

Lat Pulldown Vertical (B41)
      using cable machine as workaround (B41A)
Lat Pulldown Leanback (B42)
      different machine, more complex (B42A)
Fixed Path Pulldown Machine (B43)

Close-grip Pull-up (B51)
Close Under-grip Pulldown (B52)
Close Neutral-grip Pulldown (B53)

Lumbar Extension Machine (B61)
Swiss Ball Lumbar Extension (B62)
Incline Lumbar Extension (B63)

Wide-grip Pullup (B71)
using assistance – standing stance (B71A)

Multi-Exercise Video: An example 7-exercise full back workout