Bumblefoot "Mafalda"

Liquid Note Records (UK) released the song "Mafalda" on their instrumental-guitar compilation CD "The Alchemists," May 2002.   Guitar Techniques magazine (UK) released a 15-minute CD-lesson in the Summer 2002 issue on the technique behind playing fretless guitar and how to play the first section of "Mafalda." 

The lesson, backing track and transcriptions are available at https://bumblefoot.bandcamp.com/album/mafalda-audio-lesson-includes-backing-track-transcriptions