Trello
Trello is a collaboration tool that lets you organise your projects into boards. In one glance Trello tells you what's being worked on, who's working on what, and where something is placed in a process.
Trello lets you lay out information across a Board which can contain many Lists, each of which can hold many cards into which you can add comments, upload file attachments, create checklists, add labels and due dates, and more. Best of all, it's free (unlimited Boards, Lists, Cards, Members, Checklists, and attachments).
I have found that using Trello to help me remember and comment on each step of my music production has been very useful.My Music Project Board hold many Lists, filled with cards, which can be about any aspect of your music production. I have cards covering musical key structure, production notes, sound design tricks, and so on.
Master template
Whilst my Music Items board has many cards covering many subjects, what I will show you today is the content of my Master Template list. Each time I work on a new piece of music, I copy this template, rename it with the song working title and place it in my Song List.
The template list is made up of several sections. The first section covers general items about the song as you can see below.