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Denmark

SID Factory II is a cross-platform music editor for editing SID music that can be played on a Commodore 64. It uses the reSID emulator. The project was started by Thomas Egeskov Petersen (also known as Laxity) with assistance by Jens-Christian Huus and Michel de Bree.

The editor has been compiled for Windows and Mac under GNU General Public License v2.

You can download the editor here.

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Bratislava, Slovakia

Thanks for this music editor, i tried several times to get deeper into it, and now finally i am in and first song is in progress. Only thing is that shortcut for copy/paste sequence, it is not ctrl but command key (on iMac), and when i am adding sequences (new positions) i cannot edit that left side, only way to add next position is by ctrl + f (insert next unused seq), and by editing that new position by inserting new sequence, or use older (for example with transposition change). But i feel very comfortable in this editor, help screen around borders is also great thing and PC/Mac versions is also great thing because i can bring tune from work to home and continue to work on Windows.

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Babylon 5

This tutorial might help to kickstart composing with SF2: https://youtu.be/nXNtLetxFUg