Controlled retuning of guitar tuned-string groups during musical performance
Daniel W. Martin · The Journal of the Acoustical Society of America · 1982
The chordal portamento effects produced by the pedal steel guitarist are now widely recognized as musical components of recordings and performances of popular music, especially in the country western category. This paper will describe the instrument, the means by which these effects are achieved, and the physical actions which occur, which are not so well known.