His The ghost opera [SR] 1970: container (Bill Mathieu)

His Streaming wisdom [SR] c1981: label (Allaudin William Mathieu)

His Available light [SR] p1987: container insert (William Allaudin Mathieu)

His The listening book, 1991: CIP t.p. (W.A. Mathieu) info. from pub. (Windham Hill recording artist, music teacher, San Francisco, Calif.; he has been an arranger, composer, band player, etc.)

Windham Hill Records piano sampler [SR] 2009, p1985: insert (Allaudin Mathieu)

Cold Mountain Music WWW site, Oct. 9, 2009: bio (William Allaudin Mathieu; b. 1937; pianist, composer, author, and teacher; cited as Allaudin in article) music (W.A. Mathieu [predominant form]; William Allaudin Mathieu; Allaudin William Mathieu; Allaudin Mathieu)

Wikipedia, viewed August 15, 2017 (W.A. Mathieu; William Allaudin Mathieu (born 1937); composer, pianist, choir director, music teacher, and author; in the 1960s (as Bill Mathieu), spent several years as an arranger and composer for Stan Kenton and Duke Ellington orchestras) https://en.wikipedia.org/wiki/W._A._Mathieu