Giddings joined Jethro Tull in 1991, succeeding Maartin Allcock.
He played on the albums Catfish Rising, Jethro Tull In Concert, The Beacons Bottom Tapes, Roots to Branches, J-Tull Dot Com, Living with the Past, The Jethro Tull Christmas Album and Aqualung Live.
He toured with the band all over the world until 2007 when he was succeeded by John O’Hara
This collection of live performances filmed in Germany in the 1970's, '80s and '90s capture British rockers Jethro Tull in top form over a long and fruitful career. Selection from concerts recorded in 1982 and 1986 include "Aqualung," "Heavy Horses," "Thick as a Brick," "Too Old to Rock 'n' Roll: Too Young to Die" and "Locomotive Breath." Bonus tracks from 1970-71 and 1993 include "So Much Trouble," "Nothing is Easy" and "My Sunday Feeling."