Question: Hum & Strum Along with Chet Atkins is a recording by American guitarist Chet Atkins, released in 1959, and is a country-themed "listener participation" album in the vein of the "Sing Along With Mitch" series of albums by which American oboist, conductor, recording producer and recording industry executive?
Context: Stringin' Along With Chet Atkins is the title of the second recording by American guitarist Chet Atkins on the RCA Victor label.  It was available as a 10-inch vinyl record.  RCA subsequently released it as a 12-inch [LP] in 1955 with additional and omitted tracks. Chet Atkins Picks the Best is the title of a recording by guitarist Chet Atkins.  At the Grammy Awards of 1968, "Chet Atkins Picks the Best" won the Grammy Award for Best Pop Instrumental Performance. Chet Atkins in Hollywood is the title of a recording by American guitarist Chet Atkins, released in 1959.  The title takes its name from the fact that Atkins recorded it in Hollywood.  The lush string arrangements are by Dennis Farnon.  Atkins later (in 1961) re-recorded this album in his home studio, using the orchestra tapes from the Hollywood session.  The original LP lists Atkins as the producer, the 1961 reissue lists "... with Dennis Farnon and his orchestra" and also lists Dick Peirce as producer. The Other Chet Atkins is an album by American guitarist Chet Atkins.  It is an unusual and notable album for him in that the entire album features Chet playing an acoustic nylon-string (Spanish) guitar and there is no country music. A Session with Chet Atkins is the title of a recording by American guitarist Chet Atkins.  It features Atkins introducing standard pop and jazz melded with country sensibilities.  The liner notes state this is the first use of a celeste on a country record.  The musicians include Homer and Jethro in the rhythm section.  Atkins uses his new EchoSonic amplifier for the first time on his recordings. Mitchell William "Mitch" Miller (July 4, 1911 – July 31, 2010) was an American oboist, conductor, recording producer and recording industry executive.  He was involved in almost all aspects of the industry, particularly as a conductor, and artist and repertoire (A&R) man.  Miller was one of the most influential people in American popular music during the 1950s and early 1960s, both as the head of A&R at Columbia Records and as a best-selling recording artist with an NBC television series, "Sing Along with Mitch".  A graduate of the Eastman School of Music of the University of Rochester in the early 1930s, Miller began his musical career as an accomplished player of the oboe and English horn, making numerous highly regarded classical and popular recordings, but he is best remembered as a choral conductor on television and as a recordings executive. Hum & Strum Along with Chet Atkins is a recording by American guitarist Chet Atkins, released in 1959.  This is a country-themed "listener participation" album in the vein of the "Sing Along With Mitch" series of albums by Mitch Miller.  It came packaged in a gatefold with a lyric and guitar/ukulele chord booklet.  It was reissued as an LP in 1961. Gibson guitars marketed a new hybrid in 1982.  Developed with guitarist Chet Atkins and Kentucky luthier Hascal Haile, the "Chet Atkins CEC (Cutaway Electric Classical)" merged solid-body electric guitar with classical guitar, resulting in a nylon-string instrument that could be played at high volumes in large auditoriums without feedback.  Classical guitarists have given the innovation little credence, but pop music stars like Sting, Earl Klugh, David Gilmour, Jack Johnson and Gipsy Kings have played it to millions of concert-goers.  Gibson also manufactured a model called the Chet Atkins CE which had a smaller 1-7/8" nut width. Chet Atkins in Three Dimensions is the title of a recording by American guitarist Chet Atkins.  The recording mixes unique arrangements of traditional tunes, pop songs and classical arrangements (hence the three dimensions of the title).  Atkins stated in his 1974 autobiography that this album was the first time he strayed away from country, even though he had been fired numerous times from various radio shows for "not sounding country enough". Stringin' Along with Chet Atkins is the title of a recording by American guitarist Chet Atkins released in 1955.  It was a 12-inch re-release of the 1953 10-inch vinyl record of the same name with additional and omitted tracks.
Answer: Mitch Miller