Reger wrote a large amount of music for organ, the most popular being the "Benedictus" from the collection Op. 59 and his "Fantasy and Fugue on BACH", Op. 46. While a student under Hugo Riemann in Wiesbaden, Reger met the German organist, Karl Straube; they became friends and Straube premiered many of Reger's organ works, such as the Three chorale fantasias, Op. 52. Reger recorded some of his works on the Welte Philharmonic organ, including excerpt from 52 Chorale Preludes, Op. 67. He composed organ works for secular use, such as Introduction, Passacaglia and Fugue, Op. 127, dedicated to Karl Straube who played the premiere during the 1913 opening of the Breslau Centennial Hall, when was inaugurated.