Here are the groups Patrick performs/records with regularly:

Ananda Jazz Ensemble Straight-Ahead / Bop / Latin Jazz piano/arranger/composer: Abi Romero Ramirez, drums: Ronny Johnston, saxes: Oscar Pangilinan
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website)
Barbara Lopez Jazz Ensemble Straight-Ahead / Swing / Latin Jazz piano: Barbara Lopez, guitar: Brian Fitzgerald, bass: Patrick North, vocals: Sasha Thomas-Brown
Hold Tight Straight-Ahead / Swing / Latin Jazz / Pop-Jazz piano/vocals: Nicole Wilson, guitar: Brian Fitzgerald, bass: Patrick North
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website)
Double Standard Swing Jazz/ Dance / Latin Jazz/ Blues piano: Sue Marvin, vocals: Liz Raquelle, drums: Bruce Handloff, guitar: Lars Wright , sax: various players
(
website)
The Dave Chaidez Quintet Straight-Ahead / Funk / Latin Jazz vocals/arranger: David Chaidez, trumpet/flugel: John Caredio, guitar: Neil Kelly, drums: Zak Morton
(
website)
Ananda Jazz Ensemble Straight-Ahead / Bop / Latin Jazz piano/arranger/composer: Abi Romero Ramirez, drums: Ronny Johnston, saxes: Oscar Pangilinan
(
website)
Little Big Band Big Band Swing, w/Vocalist 7-Piece Big Band, led by Gerry Doan (trumpet), Marcos Warshaw (vocals), Steve Gray (sax)
P.C. Wilson Band Funk / Rock / Progressive / Straight-Ahead / Latin Rock guitar/arranger: Paul Wilson, keyboards: Neil MacPherson, drums: Shawn Medeiros, percussion: Roberto Wilson,
(
website)
Robin Anderson's "Galaxy of Swing" Big Band Swing, w/Vocalist 7-Piece Big Band, featuring Robin Anderson (trumpet),Ruby Rudman (vocals), Roger Anderson (drums), Jack Bowers (piano)
"The Attic" Big Band Big Band Swing, w/Vocalist Full Big Band, featuring Robin Anderson (trumpet), Doug Campbell (vocals), Roger Anderson (drums), Jack Bowers (piano)
Neil Kelly Ensemble(s) Straight-Ahead / Bop / Latin Jazz guitar/arranger: Neil Kelly, tenor sax: Jonathan Bautista, trumpet/flugel: John Caredio, drums: Zak Morton
(
website)


Here are ensembles Patrick has substituted in occasionally:


Hristo Vitchev Straight-Ahead / Contemporary Funk / Bop / Latin Jazz guitar/arranger/composer: Hristo Vitchev, drums: Frank Cavasos, bass: Sani Sasmita
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website)
Brian Chester & Friends Straight-ahead / Contemporary / Funk / Latin Jazz / Blues piano: Brian Chester, drums: Bruce Handloff, bass: Victor Revere, guitar: Gary Carpenter
Ministry of Jazz Straight-Ahead / Contemporary Funk / Bop / Latin Jazz piano: Robert Jan Ridder, drums: William McCord, bass: various, trumpet: NIck Bianchini
Quinntessence Straight-Ahead / Contemporary / Latin Jazz guitar: Brian Quinn, tenor sax: Clark Baldwin, trumpet/flugel: John Stenovich, drums: Bill McCord