Software to create videos from multiple songs
With ffmpeg, on Windows, create a batch file AudiotoVid.cmd

for %%A in (*.mp3 *.m4a *.wav *.flac *.ape) do ffmpeg -i "%%A" -i "c:\path\to\image.png" -map 1:v -map 0:a -pix_fmt yuv420p -shortest -f mp4 "%~nA.mp4"


Run it in each folder that you wish to convert.

For each audio file of the given extensions. it will create a MP4 in the same folder as the audio file. This batch file does not recurse through subdirectories. If you want to do that, use the command below.

for /r %%A in (*.mp3 *.m4a *.wav *.flac *.ape) do ffmpeg -i "%%A" -i "c:\path\to\image.png" -map 1:v -map 0:a -pix_fmt yuv420p -shortest -f mp4 "%~dpnA.mp4"


Copy a few of your files to a new folder and test this there first. I don't batch often.

Get FFmpeg for Windows from https://ffmpeg.zeranoe.com/builds/