Are we in a routine yet? There is the I – vi – IV – V chord progression and we have two different methods of making a bass line, with an up and down arpeggiated bass line and also the Alberti Bass. Well, I guess my job is done as you now have the tools to create an infinite number of songs. No? Hmmm. Let’s look at completing our current assignment, or rather the solution I just came up with and then I’ll try to decide where to go next.
I’ll put in two pictures here, first the last stage of the piece we have been working on and immediately following that I’ll put in my own solution.
You have your variation and I have mine. It’s all good. I kept every note from the basic melody in the exact same place but often I changed its rhythmic value to something shorter. When writing music you can change anything you want anywhere. Please note in the basic melody every note is taken from the chord for that measure.
This is a very easy method of writing music: take an existing common chord progression, arpeggiate for the bass (the Alberti Bass is an arpeggiation), make a basic melody from notes in the chord of the moment, and then expand on that simple melody using the scale of the key you are in as you like (we’ve stayed strictly in the key of C Major so far). A lot of making it sound good is to not overdo things with lots of fast notes over a prolonged period of time.
Let’s do another with the same chord progression but in a different time signature so I can introduce you to a third kind of bass line. I’ll get you started next time.