EDIT PAGE - Sample Oscillator Key Tracking
If the TRACKING (also known as Keyboard Tracking) switch is enabled then the pitch of the Soundsource will track the keyboard, meaning the root pitch of the samples will be changed with each key.
When TRACKING is disabled, the Oscillator will not track the keyboard and depending what kind of Soundsource is loaded, some keys may have static pitches.
Single Sample
All of the keys will play the same pitch
Multi-Sample
The range of each sample will have the same pitch. For example, if there is a different sample mapped to each octave, then each octave will only play a single pitch.
Chromatic Sample
Since every key has a sample, there is no apparent change when Keyboard Tracking is disabled.
Disabling Keyboard Tracking can be useful for drones, unusual sound effect or strange tonal combinations.