mex.fS is the artist name of percussive guitarist Joseph Gravil. Composing original compositions, while playing the guitar on his lap, using the neck of the guitar like a piano to create dual melodies and rhythms, while utilising the whole body of the guitar pecussively to tie everything together. His show is almost as visual as it is audio, performing in a unique style that most people are unfamiliar with on an instrument their very famiiar with. Ambient and upbeat instrumental melodies woven with percussion and natural harmonics, his show is as unique as it is performance art.

Currently based in London, mex.fS has peformed all over the world, at weddings, business events and private hire, as well as having composed and performed for live theatres and advertisments, as well as countless festivals including the Edinburgh Fringe Festival and The Wings Fest. He has held residencies at 5star London hotels, and performed for large corporations, such as Boeing, Virgin and The Royal British Navy. mex.fS also had the privelage of recording at the world famous Abbey Road Studio, in London.