Working with sound files in processing.org

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Java

coding-challenge

create a step sequencer program. So there should be a note class and a step class. The step class should draw the note class, assigning it its frequency and triOsc.

Make a new class Step which will handle a column of Notes. It will have as variables an array of Note objects, as well as a variable for whether or not it is the current step. The constructor will have as parameters the number of Notes, an array of the desired note frequencies, and position/width/height for the column. These will be used to construct the Note array as well as the Notes within it. Step should have a display() method which draws the Note boxes via their display() methods. It should also draw an indicator as to whether or not it is the current step. Step should have a play() method which loops through the Note play() methods. For testing, you may use the following list of A major scale frequencies: 220, 246.94, 261.63, 293.66, 329.63, 349.23, 392.00, 440.00.

What I have tried:

I have tried to set up the step and note class but I don't know how to create a triOsc array and tie that to the frequency of the note