I have been playing with Lilypond a little more, and here are some themes that I have transcribed. They are all from John Carpenter movies: the first is the theme from “Halloween”, which is an interesting 5/4 time piano riff; the second is the synth theme from “Escape From New York”, and the final is the ending credits music of “The Thing” (known as “Humanity Part II” on the soundtrack album). The last one is a bit messy as I couldnt get Lilypond to hold the ties across multiple bars properly.
This is still not 100% finished – there are some omissions. Plus, my transcription may be incorrect in places.
Here is the PDF:
And the Lilypond source: