Roots of Jon Lord

Sir Malcolm Henry Arnold was an English composer and conductor. His works feature music in many genres, including a cycle of nine symphonies, numerous concertos, concert works, chamber music, choral music and music for brass band and wind band. His style is tonal and rejoices in lively rhythms, brilliant orchestration, and an unabashed tunefulness. He wrote extensively for the theatre, with five ballets specially commissioned by the Royal Ballet, as well as two operas and a musical. He also produced scores for more than a hundred films, among these The Bridge on the River Kwai (1957), for which he won an Oscar.

Johann Sebastian Bach was a German composer and musician of the late Baroque period. He is known for his prolific output across a variety of instruments and forms, including the orchestral Brandenburg Concertos; solo instrumental works such as the Cello Suites and Sonatas and Partitas for Solo Violin; keyboard works such as the Goldberg Variations and The Well-Tempered Clavier; organ works such as the Schübler Chorales and the Toccata and Fugue in D minor; and choral works such as the St. Matthew Passion and the Mass in B minor. He is known for his mastery of counterpoint, as heard in The Musical Offering and The Art of Fugue. Felix Mendelssohn precipitated the Bach Revival with a performance of the St. Matthew Passion in 1829. Ever since, Bach has been acclaimed as one of the greatest composers in the history of Western music.

Eugene McDuffy, known professionally as "Brother" Jack McDuff or "Captain" Jack McDuff, was an American jazz organist and organ trio bandleader. He was most prominent during the hard bop and soul jazz era of the 1960s, often performing with an organ trio. He is also credited with giving guitarist George Benson his first break.

Martin Peter Birch was a British music producer and sound engineer. He became renowned for engineering and producing albums recorded predominantly by British rock and metal bands, including Deep Purple, Rainbow, Fleetwood Mac, Whitesnake, Black Sabbath, and Iron Maiden.