- His company Trebel manufactured harpsichords and the OMB, or One-Man-Band, a piano with a built-in synthesizer, rhythm box, and bass pedals that can all be played at the same time. Trebel was a popular brand of acoustic upright pianos in Philippines in the 1970s to 1980s.
- Was the president of the now-defunct Trebel Music Corporation, a piano company in the Philippines.
- His company name is Trebel, a portmanteaus of his name and wife Eloisa Vistan. Treb is Bert spelled backwards and El is for his wife. It was founded in 1962.
- He also developed and patented a singalong machine using "minus one" technology (originally on cassette tapes) in which vocals are subtracted from extant instrumental tracks.
- He never received formal music education but learned to play the piano, drums, marimba, and xylophone by ear.
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