Ratatet sprang out of a collective trio formed in 2014 named Electreo, which consists of Alan Hall, Jeff Denson, and Paul Hanson. In the process of writing music for Electreo, Alan's desire to write for a larger ensemble grew, and once all the personnel pieces fell into place, the band was formed.

Ratatet released "Arctic" in 2016, and "Heroes, Saints and Clowns" in 2018.


Drummer and composer Alan Hall has performed and/or recordedwith: Lee Konitz, Taylor Eigsti, Russell Ferrante, Billy Childs, Kenny Werner, Art Lande, Christian Jacob, Kit Walker, Tom Coster, Eddie Harris, Bob Sheppard, Paul McCandless, John Handy, Jimmy Haslip, Ratzo Harris, Stuart Hamm, Kai Eckhardt, John Clayton, Rebecca Parris, Kenny Washington, Betty Buckley, Mark Murphy, Joyce Cooling, Victor Mendoza, Cirque du Soleil, Teatro Zinzanni San Francisco, and many others.

He has performed at Madison Square Garden, The Monterey Jazz Festival, Vancouver International Jazz Festival, Barbados International Jazz Festival, JVC Jazz Festival, BumberShoot Festival, and Yoshi’s San Francisco.

He taught at Berklee College of Music from 1986 to 1993. He currently teaches at Cal State University East Bay in Hayward, The California Jazz Conservatory in Berkeley, and UC Berkeley.

Alan was heard previously at Chez Hanny with Michael O'Neill, Charlie McCarthy, Fiveplay, the Sheldon Brown Group, Jeff Denson, Dave Haskell, Edward Simon, and Ratzo Harris.


As a jazz/fusion bassoonist, Paul Hanson has recorded and/or performed with Billy Cobham, Bela Fleck, Wayne Shorter, Peter Erskine, Billy Childs, Grégoire Maret, Billy Higgins, David Binney, Ray Charles, Charlie Hunter, Patrice Rushen, Alex Acuna, Dennis Chambers, Abraham Laboriel, Medeski Martin & Wood, Bob Weirʼs RATDOG, Jonas Hellborg, Omar Sosa, Bob Moses, Kai Eckhardt, Peter Apfelbaum, Paul McCandless, and Paul Dresher.

As a sax player, Paul has recorded and/or performed with Eddie Money, Boz Scaggs, The Temptations, Tower of Power, Steve Smith, Tom Coster, and Omar Sosa.

He has appeared at Carnegie Hall, the North Sea Jazz Festival, the Berlin Jazz Festival, Monterey Jazz Festival, the Ravinia Festival, the Leverkuzen Festival, the INTERLINK festival in Japan, the California Edge Festival 2005, and at the 1999 NAMM show in Nashville.

Paul appeared here previously with Alon Nechushtan, Jeff Denson, and the Paul Hanson/Jack Perla Duo.


Trombonist John Gove is a Full Professor at the California Jazz Conservatory, and Director of Jazz Studies at Laney College. He holds a MM and BM from Eastman School of Music.

He has performed and/or recorded with Terence Blanchard, the Mingus Dynasty, Maria Schneider, Tony Bennett, Diana Krall, Dr. John, Peter Gabriel, Huey Lewis, and Smashmouth.

He is the winner of two Downbeat awards for composition and arranging, and his arrangements have been commissioned and performed by such artists as Ledisi with the Count Basie Orchestra, and the SFJazz All Stars.

Vibraphonist (and drummer) Dillon Vado grew up in San Jose, California, and started playing music at the age of 8. He played marching snare drum with the Santa Clara Vanguard, and began studying music more seriously at West Valley College, where he started playing the vibraphone. In 2012 Dillon transferred to the California Jazz Conservatory in Berkeley, where he is currently finishing his Bachelor’s degree.

His performance experiences include jazz gigs in the South Bay at the Art Boutiki and Cafe Stritch, recording at Fantasy Studios, and playing at The Freight and Salvage, Yoshi’s, the SF Jazz Center, the Montreux Jazz Festival in Switzerland, and the Umbria Jazz Festival in Italy.

In 2014, Dillon won 1st place in the Jazz Search West competition on vibraphone, and in 2017 was selected for the Buddy Montgomery Jazz Legacy Award through the California Jazz Conservatory.

Dillon has performed with Art Lande, Marcus Shelby, Hafez Modirzadeh, Royal Hartigan, Erik Jekabson, Jeff Denson, Alan Hall, Marcos Silva, Beyond Words: Jazz and Poetry, Never Weather, and The Table Trio.


Pianist Dan Zemelman studied with Richard Davis at the UW Madison and received the award as 'Best Jazz Artist' at UW Madison in 1996. In 1998 as part of the Kennedy Center’s prestigious Jazz Ambassadors program, Zemelman toured India and Sri Lanka.

He contributed to John Lee Hooker’s last studio album "Face to Face", and toured South America with daughter Zakiya Hooker's band.

Recently Dan has been performing with Jeff Denson and his quartet featuring Lee Konitz. The group released a CD and did a tour in Europe in 2015. A second CD, featuring bassoonist Paul Hansen was released in 2016. Dan also plays with grammy-award winning violinist Mads Tolling, vibraphonist Christian Tamburr, Electric Squeezebox Orchestra, and Bay Area icons Marcus Shelby and Adam Theis.

Dan has appeared at Chez Hanny with the Aaron Germain/Dan Zemelman Quartet, Alex Murzyn, Dave Haskell, Dan Pratt, Jeff Denson, the Sheldon Brown Group, and the Dan Zemelman Quartet.


Bassist/composer Jeff Denson is a recording artist for Enja Records with Minsarah, and the Lee Konitz New Quartet, and for Ridgeway Records with the Jeff Denson Trio + Lee Konitz, and the Jeff Denson Quartet.

He has performed at such prestigious international festivals as the JVC Jazz Festival Paris, the Berlin Jazz Festival, the Enjoy Jazz Festival, and the Montreal Jazz Festival, and with such distinguished musicians as Bob Moses, Charlie Byrd, Joe Lovano, Carl Allen, Kenny Werner, Geoffrey Keezer, Art Lande, Charles McPherson, Cuong Vu, and Brian Blade.

He is a full professor at the California Jazz Conservatory in Berkeley, and founder/director of Ridgeway Arts.

He has appeared at Chez Hanny with Minsarah, Adam Kolker, Alon Nechushtan, Kari Ikonen, the Jeff Denson/Joshua White Project, and the Jeff Denson Quartet.