The T-Bar Run can be accessed by the Harmony and Peak Express (via Matthew's Traverse).
This is the groomed slope that is located skier's left of the T-Bar that is a good option for some more intermediate-friendly, more mellow alpine terrain.
This groomer runs the length of the T-Bar, ending at the base of the Peak Express.
This run is significantly less steep than other groomers nearby such as the Saddle.
The T-Bar run offers wide open space as well as little crowds, as many do not venture over here, keeping it generally quite quiet.
If you want to start to familiarize yourself with Whistler's alpine terrain, this can be a good entry point and place to start to get a feel for the area.