Dan Costello is a singer/songwriter, guitarist and prime staple of the remote but robust music scene in Boise, Idaho, USA. Armed at an early age with a radio and a baritone ukulele, his love for music led him to a classical guitar degree from Boise State, and a full-time professional music career now spanning over 15 years as a performer, writer/arranger, educator and simultaneous rabble-rouser/peacemaker in his local community.

While "Costello" is not all that common of a surname, it is shared by TWO established musicians named Dan Costello -- practically mirror images of each other in their respective music circles (one in Boise, the other in NYC). The two met in 2014 at the famed Sidewalk Cafe in Manhattan and continue to share a bond beyond just what's in a name. Be sure to check which Dan Costello you're tuning into here and elsewhere (and check out the other one as well!).

Grant Green has worked as a drummer / percussionist throughout the Northwest since the early 1970's. Some of the festivals Grant has performed at include:

The Northwest Folk Life Music Festival, California World Music Festival,The Gene Harris Jazz Festival, The Sun Valley Jazz Festival, The Idaho Shakespear Festival, Boise Music Week, The Sun Valley Summer Concert Series, The Idaho Botanical Garden Summer Concert Series, The Yellow Pine Harmonica Festival, and Treefort Music Festival. 

You can catch Grant playing around the Treasure Valley with some of his local band projects including: The Moody Jews of Boise, The Blues Addicts, Katie G and The Half Macs, Gary Tackett and Full Moon Rude, Flamenco Idaho, Carmel and The Closers, Michaela French, Sono Fuego, Maha Via, and many others.

Mike Seifrit is a bass player who has been active in the music business for more than three decades.

He became s member of the re-united group “Three Dog Night” in 1981, staying with them approximately a year before becoming a member of the band supporting the singer Rick Springfield. He toured, appeared on Live Aid and recorded with him until the mid ‘80s and followed that by becoming the bass player in Stan Bush’s band, “Barrage”.

The numerous artists he has worked with during the course of his career include: “The Legends of Rock ‘n’ Roll”, Tina Turner, Paul Williams and Weird Al Yankovic to name a few.

Since the 19990s he has been a member of “Onomatopoeia” based in Boise, Idaho. He has performed with them in between working as a studio musician in Los Angeles, California and with his later IT position in the Idaho Department of Juvenile Corrections.

Sean Rogers

Music Director, Arranger, Pianist

Sean Rogers is Sun Valley Opera and Broadway’s Music Director, Arranger, Pianist.

He has won acclaim nationally and internationally for his artistic mastery at the keyboard and tours extensively as a collaborative pianist with vocalists and instrumentalists.

For three years, he served as the Interim Director of Choral Activities at the College of Idaho, where he earned a degree in Piano Performance, Organ Performance, Sacred Music and Religion. Four of Sean’s arrangements are published by Sonology Music, as well as several commissioned works.

Recently, Mr. Rogers and soprano Leslie Mauldin co-founded the new eclectic performing arts ensemble “Pink Fusion,” a musical fusion of songs from opera and jazz, interspersed with original compositions mixed with a variety of media.

In concert, Sean demonstrates piano improvisation with a fusion of jazz, classical and Latin idioms, leading to performances in New York, Chicago, Los Angeles, London and Frankfurt. He tours nationally in his own shows and productions, showcasing music from the Great American Song Book, and improvising music for silent movies on both piano and organ. Sean has been personal pianist to many jazz musicians, including members of The Lawrence Welk Show, and for many artists from companies including The Metropolitan Opera, The Chicago Lyric Opera, The Hamburg State Opera and The Vienna State Opera.