Althoff, a long-time Chet Atkins admirer, specializes in the recording of guitar music.

It was at a Chet Atkins Appreciation Society convention in Nashville in the 1990s where he met Emmanuel for the first time.

After Emmanuel had moved to Europe, Althoff played a key role in getting him started there, he aided in organizing concerts.

[1] Later, Althoff produced Emmanuel's collaboration with guitarist Jim Nichols titled Chet Lag (re-issued as Happy Hour) and recorded several more of the Australian's work.

[2] Apart from Emmanuel, he has worked with artists such as Jerry Donahue, Doug Morter, Ray Jackson, Clive Bunker, Rick Kemp, Joscho Stephan, Richard Smith and Gareth Pearson[3] among others.