During the seasons 1997-8 and 1998-9, while the company was looking for a successor to Daniel, Elgar Howarth held the title of Music Advisor.
Mehta has served as the IPO's Music Advisor since 1968.
In 2005, he took on the post of Music Advisor to the Pittsburgh Symphony Orchestra for three years.
He was one of the founders of the Little Missenden Festival and acted as its Music Advisor until his death.
For 2004-2006 he served as Music Advisor to The Louisville Orchestra.
He is Music Advisor to the European Association of Jewish Culture.
Music Advisor of the President of the National Arts Centre of Mexico.
In 1941 he was appointed Music Advisor to the Carnegie United Kingdom Trust.
In 2005, Davis became Music Advisor to the Pittsburgh Symphony Orchestra, for a designated three-year period.
During the Second World War he served as Music Advisor, Northern Command (1941-1945).