ConvertCSV is basically a wrapper around Dantarion's Any Length Song Title Tool.
It's written in Java, and it generates a songs.db for ALSTT based on a music.csv file and an array of default songs stored within the code. Then it runs ALSTT in the console.
The music.csv file is a plain text file and looks something like this:
Final Destination;Other Music Battlefield;Different song #This is a comment
With the included "example" Excel spreadsheet, you can enter all your music in spreadsheet form and then follow a few simple steps (included in the spreadsheet) to output it in a form that ConvertCSV can read.