"Extremely fun and entertaining! Occam's Rose combines both unique and familiar melodies to foster both joy and laughter while stirring deep emotional connections."” - Eric Pearson, fan

Occam's Rose

Classically-trained multi-instrumentalists, composers, songwriters, and performers

Occam's Rose is the amalgam of the unique music performance experiences, composition styles, and instrumentation of Anastasia Rose and Peter H. Each are professional musicians, educators, and composers whose versatility allows them to write for and perform in virtually all settings from a small coffee shop to large concert halls to private events such as weddings and parties. Their style is alternative with a classical spin.

The inception of Occam’s Rose began several years ago, long before either of the duo had any idea what the future held. Anastasia and Peter peripherally knew of each other’s existence as music students at Colorado State University then became coworkers when teaching band together at Windsor High School in 2015 and 2016 until losing touch.

Flash forward to 2020 (and we all know what happened) and Anastasia’s band Then I Fly was looking for a new drummer. After some convincing, Peter decided to come to a practice. Later, Anastasia was selected to play on a singer/songwriter showcase and invited Peter to accompany her on original songs and covers. This was March of 2021 and since, the rest is history. Check out the duo’s first showcase (before the words Occam’s Rose were ever uttered) together at the video below! https://youtu.be/g_YsVJriS1c

Meet the Band


Voice, piano/keys, guitar, melodica, auxiliary percussion

Anastasia wears many hats in life from small business owner to Colorado Musicians Union Womxn's Committee Leader to public speaker on top of her songwriting and music performance. Having played piano for over 25 years, she is no stranger to the music industry and has performed for crowds of over 20,000.

Anastasia's classical influences include Maurice Ravel, Claude Debussy, and Bela Bartok teaching her the importance of rhythmic vitality and the beauty of impressionism. Her modern and pop influences include Regina Spektor, Elliott Smith, and Florence + the Machine showcasing emotionally moving and cathartic songwriting styles.


Percussion/drumset, guitar, keys

Peter Hirschhorn (b.1994) graduated from Colorado State University in 2017 with degrees in Music Composition and Percussion Performance. He began learning piano when he was six, guitar at nine, and switched over to studying percussion when he was 11. He has performed in a variety of classically trained ensembles including high school and college marching bands, concert bands, wind ensembles, percussion ensembles, and orchestras, and the Blue Knights Percussion Ensemble. Peter has written music that has been performed by a number of various ensembles across the state of Colorado. He has been teaching and writing for high school percussion since 2014, and has given clinics and private lessons for students ranging from beginning elementary through collegiate levels. 

Peter is currently performing with the ska/punk band Then I Fly as their drummer and is the percussionist/multi-instrumentalist for the alternative duo, Occam’s Rose. He is a percussion instructor at a couple local high schools and enjoys spending time with his cat, Thalia.