If you are looking for a little help creating new patterns, the Music Tool can randomly generate a one for you. Simply press the music generator button, and the tracks will be automatically populated with random notes.
The music generator will use its default settings to automatically create notes on each track based on specific song properties. It is also important to note that in the default configuration, the sound effects for each track will automatically be overwritten and new ones will be created specifically for the song. You’ll want to reserve the first 5 sound effects or however many audio channels your game has, to the music generators instruments.