- Name: Harumi Ueko (上高治巳)
- Birthyear: 1965
Harumi Ueko is one of the first composers of the GuitarFreaks & DrumMania series. He contributed to least one song for every game of the series up to GuitarFreaksXG2 & DrumManiaXG2. He is well known for his jazz fusion songs.
Outside of BEMANI, Harumi composed music for other KONAMI titles such as Ganbare Goemon, the SNES port of Teenage Mutant Ninja Turtles: Turtles in Time, and the Silent Scope series.
Harumi retired from KONAMI on June 15th, 2012. He currently works as an independent sound engineer.
- Harumi's main alias, Jimmy Weckl, may be a reference to jazz drummer Dave Weckl. "Weckl" also might be an anglicisation of "Ueko".
- Harumi has several songs in SEGA's maimai music game series. He has also appeared, alongside Hideyuki Ono, in the indie rhythm game nanobeat.
- Jimmy Weckl
- Vap Ueko
- Shang Gau
- 亜熱帯マジ-SKA爆弾 (member of, with Hideyuki Ono and DokiDokiDokky)
- JJ-road (member of, with Handsome JET)
- GINGER (with あさき)
- 悪夢の犬猿コンビ (with 佐々木博史)