The MIDI files will only contain the generated on-screen chords, rather than full song instrumentation.
If you're interested to try the MIDI files out before subscribing, please check out our Premium Demo channels with unrestricted access here:
https://chordify.net/channels/premium
https://chordify.net/channels/stay-at-home-and-jam
If you have any questions, please reach out to support@chordify.net.
Happy jamming!