grub-init-tune-gen

This tool takes a manual input of notes and their duration and generates a code to be used in GRUB_INIT_TUNE at /etc/default/grub. The process can be quite long depending on the track.

It doesn't support tuplets but you can work around that: say you have a track that's mostly triplets, then you can multiply the tempo by 3/2

• grandma_nier.txt in the examples folder is originally a track with 107 BPM and triplets, but the tempo given in grub-init-tune-gen was 161, because ceiling(107 * (3/2)) = 161, then I just typed the notes as regular 8th notes

Here are some possible entries for notes in the program:

• E4 4 [4th note]
• f#3 2 [half note]
• f#2 1 [whole note]
• Bb6 4. [this is a dotted 4th note]
• bb4 32 [32nd note]
• rest 8 [this is a rest with the duration of a 8th note]

The files stratosphere_input.txt and stratosphere_output.txt are the most comprehensive examples in the examples folder, and stratosphere_input.txt has comments explaining how it works. It's not really a practical tune to use as your init, but it's certainly didactic.