Yeah I made the menu using LemonUI since it features those slider bar elements which make it easier to use. Also figuring out how to automatically generate submenus based on a JSON file's contents took a while since I don't think LemonUI was really intended for that, but I as far as I can tell there are no bugs and it actually runs smoothly which surprises me considering how many submenus must be created.
You're welcome. I originally just wanted to create a small tool to help me test music events, but it eventually turned into countless hours making a proper menu and giving the music events names and whatnot. It was definitely worth it though and I found out some interesting things along the way. For example, I'm pretty certain Rockstar actually made a mistake when they named the music event MIC3_FRANK_DOWN because it's used in the mission Fresh Meat (michael2.c), yet its name references The Wrap Up (michael3.c)... I don't know if anyone noticed this before but I though that was pretty cool.
The forum is not allowing me to send links or embed anything because I don't have enough reputation so all I can do is say the menu is called "Slav Menu" and its on this website...
If anyone is interested I have created a menu that sorts music events both alphabetically by mission name and chronologically if applicable. This should make it much easier to test music events for use in mods. It's open source so anyone can contribute with naming music events and ordering them. This is very easy to do as all music events as well as their names are stored in a JSON file and the menu will automatically create submenus based on the contents of that file. The menu also contains other tools I've made over time to make modding easier since I preferred to have everything in one menu.
I ordered music events based on how the scripts use them, however I cannot guarantee all of them are ordered correctly because sometimes the scripts themselves do not flow chronologically as you scroll through them. Luckily most music events from story mode reference some specific event in their respective missions that occurs around the time they are triggered. This makes it pretty clear when they occur chronologically. Also, I have not figured out what content some music events originate from and as a result I have not given them names. This mostly pertains to music events from online DLC's, so if anyone is more knowledgeable about online content feel free to add them to the menu. Progress regarding music events that have not been named can be found on the discussions section of the Github repository.
Edit: links have been added