Adding style pieces: For from 1 .. 16: Add a midi piece - from a midi file - via use of the attribute addMidiPart The value of this attribute is an absolute file path to the midi file. The attribute addAsCannel controls the channel assigned to the added piece. The attribute repetitions controls the number of repetitions of the pieces. Default value is 1. It is assumed that the piece is shorter or equal to (* ppqn partLengthQN), where partLengthQN is annother attribute. Enfore the number of repetition, and enforce that each repetition has the length of (* ppqn partLengthQN). partLengthQN is required if repetitions is larger than one. The attribute limitQN is used to enforce an upper limit of the length of a part. limitQN is mandatory, because it is necessary (very desirable) to cut off too long durations. limitQN is shared between all additions to a section, such as MainA. For fills, limitQN is automatically set to the number of quarter notes of a bar (the bar length).