Your Woovebox allows you to work with 16 tracks per song. A track plays a single instrument (for example a bass or synthesizer lead) or a "kit" (for example a drum kit, or a number of pre-defined vocal chant samples, etc.).
With one exception, all tracks are monophonic (meaning they can only sound one note at a time) or paraphonic (meaning they can sound multiple notes at a time, starting at the same time). The one exception is the chord ("Cd") track. It is the only track that is 5-voice polyphonic, allowing for complex chords. The 16 tracks of your Woovebox are designated;
With the exception of the Cd track, all tracks are interchangeable and their behavior or role in your song can be re-assigned. Or in other words, the designations for all tracks (except Cd) are merely "serving suggestions"; you do not have to put a hi-hat on the hh track if you don't want to, and you can reconfigure the track's behavior if needed. So, if you wish, you can put a bass or arpeggio on the hh track instead. You can have fifteen sample kits, or fifteen snares if you so desire.
Tracks may further be configured to play real-time synthesized sounds, play samples, modify incoming audio, modify the delay buffers, or may be silent altogether (for example when driving other external music gear through MIDI).