The music theory content can be found at Music Fundamentals on the Web.
The page is related to the topic of intervals.
It is common to use sequential patterns of intervals. The pattern known as 'broken thirds' is especially common. It is a pattern of jumping up the interval of a third then dropping down a second and repeating the pattern on the new landing note. The first assignment has an example of broken thirds and also the similar pattern using fourths, fifths, sixths, seventh and octaves. The term 'diatonic' mean we are staying within a single scale. In assignment 11 the intervals stay within C major. The lilycode notes are already entered for this assignment, click Play to hear it. Copy and paste both the lilypond note code and the resulting lilypond score into your course lilypond file (and save). You can use the lilypond score to create a pdf of assignment 11 using the usual method with lilypond.
Clear the lilypond note entry field (click inside the note entry textarea, select all, click delete). For this assignment you are to make a similar file of broken thirds, fourths, fifths, sixths, seventh and octaves in the key of D major. Use the same format as assignment 11. The pattern works like this: when ascending jump up the (interval size) then jump down (interval size-1). repeat from this new location. For example if the interval is a fourth, to create 'broken fourths' you start on a note, jump up a fourth (stay within the scale) then jump down a third. Now repeat the same pattern on the note you just landed on. Repeat until you complete one full octave. Use assignment 11 as a model. Here is a workflow you might want to use:
Put each of the broken intervals patterns on its own line for clarity. Also add a key signature of the key you have selected so that there won't be any accidentals. (you'll still need to enter the correct note names using sharps or flats within the lilypond note file.) (click stop then) Play it as you write each line. When you've completed the assignment and it plays as you expected, paste your lilypond note code into your course lilypond file (and save). Also copy/paste the resulting lilypond score into your course lilypond file (and save). Finally use the lilypond score to create a pdf of assignment 12 using the usual method with lilypond.
Clear the lilypond note entry field (click inside the note entry textarea, select all, click delete). For this assignment you are asked to write out some intervals from given starting notes. Here is a list of 10 intervals, 5 ascending and 5 descending. Write them out in lilypond note code. Write in the given starting note using lilypond format then solve the interval question by deciding the correct second note and write that in lilypond format. Use half note durations for all notes so that both notes of each interval will be in single measure of 4/4.
After you have entered all of the notes of the intervals, save a copy of your lilypond note code. (click stop then) Click play to hear it and generate a lilypond score, copy/paste the lilypond score into your course lilypond file. Use the lilypond score to create a pdf of assignment 12 using the usual method with lilypond.