Board Members

 Julia Hansen  PRESIDENT

Julia Hansen


Julia has been a devoted follower of Opera her entire life!  Having little musical talent herself, she has admired and supported the art enthusiastically and is thrilled to be a member of the talented Boulder Opera Company.  Julia is a versatile brand visionary with broad international management experience and multiple language efficacy.  Holding a Master Degree in International Management, Julia brings extensive experience building and leading global companies to the team.  Julia and her family have lived around the world and have enjoyed the cultural diversity of their global citizenship.  Julia is determined to engage the Colorado community in the modern perspective offered by the Boulder Opera Company.  She understands that arts and culture are an integral part of shaping the unique, fast-paced face of the greater Boulder community.   


 Olga correll  Director of fUNDRAISING

Olga correll

Director of fUNDRAISING

Olga is excited to help Boulder Opera in reaching their artistic, educational and financial goals. Growing up in Munich, Germany, she has lived and studied in the UK and Switzerland before moving to the US. She holds a dual Master's degree in Philosophy and Computational Linguistics and is fluent in English, German, and French. Early on she was a very frequent guest at the prestigious Munich Opera House, where student tickets ran half the prize of movie theater tickets. This motivates her to help also make Boulder Opera accessible to everyone. Through her work with Boulder Opera, Olga hopes to not only instill her love of the arts in her four children, but also share with the greater Boulder community.

 Robert Arentz   VICE-PRESIDENT

Robert Arentz


Robert came to Boulder Opera with 33 years of experience in the nonprofit sector. He has organized and conducted a series of three-each community-wide sing-alongs of G. F. Handel’s oratorio: Messiah, on a weekend close to, but before, Christmas. Over the decades, this totals to 99 performances. Mr. Arentz makes his living as aerospace engineer, not as a musician. His other interests including glass-blowing, small-scale stone sculpting, abstract painting, and a little woodworking.  He has a limited, but nice library centered on history and the sciences.  Presently, he is attempting to learn modern Greek:  maybe he’s beginning to lose his mind a little …. 

The Team

 Dianela Acosta  Executive Artistic Director

Dianela Acosta

Executive Artistic Director

Dianela founded the Boulder  Opera Company  in 2012  with the intention  of developing new audiences and making  opera accessible to diverse audiences.Boulder Opera  has introduced thousands of Boulder residents of all ages to opera, bringing together music, dance, and art together with a fresh, vibrant approach to this ancient art.

      Originally from Barcelona, Spain, she is a classically trained singer with a  M.M in Voice performance from Denver University, and sings locally  as an ensemble artist with Central City, Boulder Opera and Opera on tap. Prior to moving to Boulder Dianela lived in NY  where she was an artist in Residence with the Dicapo Opera, Amato Opera, and performed with NY Opera Forum and New York Opera Lyric Theatre.

  Gene Roberts   Stage Director & Acting Coach

Gene Roberts

Stage Director & Acting Coach

 Director of Opera Theatre at MSU Denver, makes his debut with Boulder Opera in the 2018-19 season, directing Little Red Riding Hood, Signor Deluso and Cavalleria Rusticana.  He holds a BM in vocal performance from the St. Louis Conservatory of Music, where he also studied stage direction, and a MM in vocal performance from the University of Houston.

Roberts began his professional career in Europe, where he joined the Swiss premier cast of Lloyd Webber’s das Phantom der Oper in Basel, Switzerland. Phantom led to many other opportunities throughout Europe in stage and television, including starring as Beast in the German production of Disney’s Beauty and the Beast (die Schöne und das Biest), a role Roberts performed over 500 times. Altogether, throughout the US and Europe, Roberts sang over 30 roles in musical theater including Tony in West Side Story and Snoopy in You’re a Good Man Charlie Brown, and 20 roles in opera including Basilio in Le Nozze di Figaro, Normano in Lucia di Lammermoor and Bardolfo in Falstaff. His students have been seen in US touring productions including Billy Elliot, European productions including CabaretLittle Shop of Horrors and Miss Saigon, and on the West End in London - The King and I.

This year, Roberts directed Le Nozze di Figaro and Joseph and the Amazing Technicolor Dreamcoat for the Bay View Music Festival in Michigan, was a guest director of Webster University’s opera theater in St. Louis, MO as and served as the scenes director for the Naked Voice Institute at Northwestern University.


 Jewels Rossallini -Coker  DirEctor of Development

Jewels Rossallini -Coker

DirEctor of Development


Jewels is thrilled to put her talents and love of the arts to use for the Boulder Opera Company. Her first introduction to Opera was at the Lyric Opera House in Chicago where she saw Puccini’s La Boheme.  What made this interesting is that she went with a friend at the young age of 13 who couldn’t afford to buy tickets.  So, she would work the coat check and in exchange get a free ticket anywhere in the house. This model began Jewel’s journey and education into the world of Opera. When Jewels discovered the Boulder Opera Company, she knew right away she wanted to get involved in helping find sponsors so that children and adults could fall in love with outstanding opera.  Jewels has a degree in Art History and Theology that she puts good use to in the world of Software. She has traveled the world Kitesurfing with her husband and has done a northern ascent thru Tibet of Mt. Everest with Peter Hilary for the 50th anniversary of Sir Edmund Hillary’s first ascent .  She has traveled and sailed the world.  A lunch with her will definitely leave you wanting to sponsor the Boulder Opera. 


Melissa Kilberg


Melissa Kilberg is an avid opera fan and supporter of the arts.  With a Master's Degree in Venetian Renaissance art from the Courtauld Institute, and a background in Art History, Melissa has always been enthusiastic about art and music.  She worked at the Santa Fe Opera for half a decade, and fully enjoyed every aspect of the operatic experience.  Now that she has children of her own, it is her passion to promote opera to young audiences and ensure that opera is loved for generations to come.


 Nadia Artman  artistic producer

Nadia Artman

artistic producer

Nadia Artman was born in Moscow, Russia (former USSR) and now resides in Boulder, CO and Naples, Fl with her twin daughters. Nadia is the Vice President of Arts Naples World Festival. She holds a Bachelor degree in Civil Law from The Academy of Labor and  Social Relations in Moscow and Master’s degree in Foreign Languages from Moscow State University. Nadia has provided legal council for the work  shop of Sculptor Zurab Tsereteli; served as the Artistic Director for design group Fresh Art and worked as an Executive Producer and founder of Nuestro Tango Orchestra in Moscow. She has produced many shows throughout the United States and Russia such as “Kremlin Bricks” an exhibition of the Artist Leonid Semeiko, “Metamorphosis”a fashion show Naples Fl with Arts Naples World Festival, Opera Iolanta in New York and San Francisco. She is also well versed in the world of video production and has produced many videos for Nuestro Tango Orchestra and Arts Naples World Festival.

Having written many childrens’ books, such as The Chick and The Caterpillar and Sweet Pea and a Honey Bee, Nadia brings new imagination and creativity to our Family Series productions and will be Co-Producing Little Red Riding Hood with the Boulder Opera. Nadia is a big supporter of the Arts in the various forms. 

“I love to be in the audience to hear an Opera or to see a great performance, but I prefer to be an insider and make an effect on it’s production” - Nadia Artman

 brooke Murray  Assistant Executive Director & Box Office Manager

brooke Murray

Assistant Executive Director & Box Office Manager

Brooke graduated from the University of Colorado Boulder with a Bachelors of Arts degree in music, specializing in vocal performance, a minor in business analytics and a certificate in music entrepreneurship. Brooke has studied voice for over eight years and has trained for a summer in Florence, Italy. She is excited to work with the Boulder Opera Company and share her love and passion for music while promoting opera to young audiences. Having grown up in a musical family, Brooke truly believes in the power of music and the arts.

 Chappell Kingsland  CONDUCTOR & COMPOSER

Chappell Kingsland


The music of Chappell Kingsland seeks to integrate elements from diverse musical cultures into a personal and compelling synthesis. He studied composition at the Eastman School of Music (BM) and Indiana University’s Jacobs School of Music (MM, DM). His compositions have won first-place awards from the Percussive Arts Society, the Jacobs School of Music, and the International Tuba-Euphonium Association, among others. He teaches Music Theory and Piano Class at the University of Denver’s Lamont School of Music and plays for Eurhythmy classes at the Denver Waldorf School.

Dr. Kingsland was the founder and Artistic Director of New Voices Opera, a student-run opera company in Bloomington, Indiana. His first full-length opera, Intoxication: America’s Love Affair with Oil, premiered in April of 2013 and will receive a new production in Louisville, Kentucky this summer. Reimagining Opera for Kids commissioned The Firebringers, a half-hour chamber opera which was performed at twenty schools in the 2014-15 season and will be performed by the Boulder Opera next year. He is the faculty advisor for Mile High Opera in Denver.

Dr. Kingsland’s piano and organ recitals are noted for the diversity of their programming; in 2014 he toured with a program entitled Impressionism and Rock Piano. This summer he will collaborate with some amazing musicians to begin recording his unique arrangements of rock songs.  Please visit his website for details:


  Bring your ticket to Dagabi for a nice 15% your total dinner bill.

Bring your ticket to Dagabi for a nice 15% your total dinner bill.