This Ableton tutorial covers two quick but important sound-shaping steps when working with Granulator III: correcting pitch when a loaded sample's root note isn't C, and widening the stereo image with the Spread control.
Granulator, like most samplers, treats every loaded sample as if it's rooted on C. If the sample is actually rooted on E, playing C on the keyboard will sound an E. Using Live's built-in Tuner after the device makes the offset easy to spot, and adjusting the Transpose control by the appropriate number of semitones (in this case, minus 4) brings everything into key.
The Spread control works by offsetting the pitch slightly between the left and right channels, while also introducing subtle variations to other elements of the sound in each channel. The result is a wider, more dimensional stereo image without any additional processing.