Noun
vibist (plural vibists)
(US, slang) A vibraphone player; someone that plays the vibraphone.
The mallet dampening techniques "are to the vibist as garlic and fresh basil are to the Northern Italian chef" The Vibes Real Book, Arthur Lipner, MalletWorks Music, 1996 and contribute significantly to expressive four-mallet playing. Source: Internet
"Thinking like a pianist, arranger, and orchestrator, the vibist approaches the instrument like a piano and focuses on a multi-linear way of playing." Source: Internet