Add new instructions to README

README.md

@@ -12,6 +12,21 @@
 
 This somewhat convoluted process prevents anyone from automatically rescaling it along the way.
 
+If the above doesn't work, it's probably LibreOffice Draw scaling it even though you've told it not to. In that case, try this:
+
+```bash
+# Convert MIDI -> SVG
+./MusicBoxConverter.exe --input song.midi --output score.svg
+# Convert it to png
+inkscape -e score.png score.svg
+# Convert the PNG to PDF, rotating by 90 degrees
+convert score.png -rotate 90 score.pdf
+# Split the PDF up into multiple pages for the printer
+# -s1	Don't scale the output
+# -m	Sets the output paper size. Defaults to A4 (21x29.7cm) if unspecified, but may need to reduce by a cm or 2 on each side (as below) if things get cut off.
+pdfposter -s1 -m 20x28.7cm score.pdf print.pdf
+```
+
 ## Useful Links
  - [ffmpeg - showspectrumpic manual](https://ffmpeg.org/ffmpeg-filters.html#showspectrumpic)
  - [Frequency to Musical Note Converter](https://newt.phys.unsw.edu.au/music/note/)