Bob Hartman is listed in the credits for the following albums:
| Year | Artist | Album | Role |
|---|---|---|---|
| 1974 | Petra | Petra | Songwriter, Guitar, Banjo, Vocals |
| 1977 | Albrecht Roley & Moore | Gently Flowing Feeling | Electric Guitar |
| 1977 | Petra | Come and Join Us | Songwriter, Guitars, Percussion, Vocals |
| 1979 | Petra | Washes Whiter Than | Songwriter, Lead and Rhythm Guitars, Vocals |
| 1981 | Petra | Never Say Die | Songwriter, Guitars |
| 1982 | Petra | More Power to Ya | Songwriter, Guitars |
| 1983 | Petra | Not of This World | Songwriter, Lead and Acoustic Guitars, Background Vocals |
| 1984 | Petra | Beat the System | Songwriter, Lead Guitar, Background Vocals |
| 1986 | Petra | Captured in Time & Space | Songwriter, Electric and Acoustic Guitars, Synthesizer Guitar |
| 1986 | Petra | Back to the Street | Arranger, Songwriter, Guitars |
| 1987 | Petra | This Means War! | Songwriter, Lead Guitar, Programming |
| 1988 | Geoff Moore & The Distance | A Place to Stand | Guitar |
| 1988 | Petra | On Fire | Arranger, Songwriter, Lead Guitar |
| 1989 | Mastedon | It's a Jungle Out There | Songwriter |
| 1989 | Petra | Petra Means Rock | Songwriter, Arranger, Lead and Acoustic Guitars, Background Vocals |
| 1989 | Petra | Petra Praise: The Rock Cries Out | Producer, Arranger, Songwriter, Guitars |
| 1990 | One Bad Pig | Swine Flew | Songwriter, Guitar Solo |
| 1990 | The Rap'Sures | Loud, Proud, and Born Again | Songwriter |
| 1990 | Petra | War and Remembrance: 15 Years Of Rock | Arranger, Songwriter, Lead and Acoustic Guitars, Background Vocals |
| 1990 | Halo | Halo | Arranger |
| 1990 | Petra | Beyond Belief | Arranger, Songwriter, Guitars |
| 1991 | Petra | Petrafied: The Best of Petra | Arranger, Songwriter, Lead and Acoustic Guitars, Background Vocals |
| 1991 | Petra | Unseen Power | Arranger, Songwriter, Guitars |
| 1992 | Petra | En Albanza | Producer, Arranger, Songwriter, Guitars |
| 1992 | Petra | Petraphonics | Arranger, Songwriter, Lead and Acoustic Guitars, Background Vocals |
| 1993 | Petra | The Power of Praise | Arranger, Songwriter, Lead and Acoustic Guitars, Background Vocals |
| 1993 | Petra | Wake-Up Call | Songwriter, Guitars |
| 1994 | Petra | Power Praise | Producer, Arranger, Songwriter, Guitars |
| 1995 | Petra | No Doubt | Executive Producer, Songwriter, Guitars |
| 1995 | Petra | Rock Block | Songwriter, Lead and Acoustic Guitars, Background Vocals |
| 1996 | Petra | The Early Years | Songwriter, Lead and Rhythm Guitars, Vocals |
| 1996 | Various Artists | Never Say Dinosaur | Songwriter |
| 1997 | Petra | Petra Praise 2: We Need Jesus | Executive Producer, Songwriter, Guitars |
| 1998 | Petra | God Fixation | Executive Producer, Songwriter, Guitars |
| 2000 | Petra | Double Take | Executive Producer |
| 2001 | Petra | Revival | Engineer, Guitars, Background Vocals |
| 2002 | Petra | Still Means War! | Producer, Arranger, Songwriter, Guitars |
| 2003 | Petra | Jekyll & Hyde | Engineer, Songwriter, Guitars |
| 2005 | Petra | Farewell | Songwriter, Guitars, Background Vocals |
Robert "Bob" Hartman is a Christian artist, guitarist, writer, and songwriter. He is the founder of the Christian rock band Petra. Hartman was involved with the band from its foundation in 1972 to its end in 2005. He took a break from touring in 1995, but continued to write most of the band's songs, record guitars, and produce most of the albums. He officially returned to touring with Petra in 2003 until he decided to retire from the band in late 2005.
Bob Hartman grew up in Bryan, Ohio learned to play guitar when he was 13 years old, teaching himself from books and watching other people. He has said that two of his major influences were Joe Walsh, a member of The James Gang, and Jimi Hendrix at the time.
Hartman converted to Christianity when he was 20 after having heard about the shootings at Kent State University and asking God if he was real to reveal Himself to Hartman. God then revealed Himself to Hartman in a very real way which led to Hartman accepting Jesus Christ as his Lord and Savior. When he was 21, he joined a Christian band called Rapture with John DeGroff. During this time, he wrote some of the songs of the first Petra album. He also studied at Bowling Green State University, earning a B.A. in Psychology.
When Rapture broke up, DeGroff moved to Fort Wayne, Indiana to attend Christian Training Center (a school based in a church there). Hartman was already jamming with guitarist Greg Hough and they both moved to Indiana to attend the same school. Upon meeting drummer Bill Glover there, they formed Petra. Hartman became the principal (and most of the time, the sole) songwriter of the band, writing the lyrics and music for almost all of their songs.
In 1995, he felt he needed to take a break from touring but remained as the band de facto leader, songwriter, and producer. He also continued to play guitars on all of the albums despite not being featured on the album pictures or promotional material of the subsequent four albums - No Doubt, Petra Praise 2: We Need Jesus, God Fixation, and Double Take.
Amidst the struggles in the band during the late 90s, Hartman decided to officially return in 2001 for the release of the band's third praise album: Revival. In 2005, after much praying, he decided to retire from the band after 33 years of ministry.
After Petra's retirement, Hartman started working with former Petra singer, John Schlitt, as II Guys from Petra in an album which was released on January 26, 2007, titled Vertical Expressions.
In 2010, Hartman and other members of the early line-ups of Petra, reunited under the name Classic Petra. They released an album, Back to the Rock, with a tour that lasted until 2012.
In 2017, Hartman collaborated with missionary and guitarist Daniel Dossmann in releasing Guitar Legacy. Hartman produced, arranged, and provided electric guitar to Dossmann's acoustic guitar on the album of praise and worship songs.
Wikipedia contributors. (2021, January 14). Bob Hartman. In Wikipedia, The Free Encyclopedia. Retrieved 15:01, March 14, 2021, from https://en.wikipedia.org/w/index.php?title=Bob_Hartman&oldid=1000189756
