Petros Shoujounian, an Armenian/Canadian composer has written Twelve Duos for Trombones based on the folksong collection of the Armenian priest Komitas, known as the founder of the Armenian national school of music and one of the pioneers of ethnomusicology. Below are comments from the composer about his inspiration in writing these Twelve Duos for Trombones.

My interest in the collected works of Komitas's ethnographical songs was aroused when I was introduced to Bela Bartok's similar works followed by Alan Hovhaness's huge creative world. Bartok completed his project having at his disposal a large collection of ethnographic music, while Hovhannes studied the wealth of Komitas's music with great interest. It is difficult to say to what extent the Armenian underpinning of Hovhannes's works is nurtured by Komitas's musical world, but his classical interpretation of the Armenian ethnographical music created a huge interest in the listener. Needless to say, there is also Aram Katchaturian's legacy, which at its core has the ardent presence of the Armenian spirit, nurtured by Komitas's very existence.

Komitas has left a collection of about 3,000 cleaned versions of the ethnographic song and dance pieces, of which 1,700 have reaches us, about 400 of which have been activated. I believe that in those beautiful musical fragments reside the power to be revived, once we enrich them with colorful musical instruments and unbounded polyphonic imagination.

This is the motivation behind my own work and these Twelve Duos for Trombones: to make the essence of our ethnographic music accessible through Komitas.

These Twelve Duos are appropriate for advanced performers and may be performed on Alto, Tenor, and Bass Trombones.

Nineteen Skeletal Duets for Trombones is a set of duets of easy to moderately difficult specifically for teachers and students in private lessons. The first 15 duets are arranged from Fifteen Safari Duets for Tubas which was composed in 1989 for playing with my tuba students at Berklee College of Music. They are at different levels of difficulty and in various styles so that we always had duets to play no matter what was the ability of the student. The additional four duets were added in 2020 for trombones for this set. The title of each duet is also a name for a bone in the human body, hence the name Skeletal Duets. There is something in each duet for students to learn: the basics of tone production, rhythms, melodic phrasing, jazz, graphic notation, etc. Most are sight readable and some have been performed in concerts. Nineteen Skeletal Duets for Euphoniums are the same duets but in treble clef. Twenty-two Skeletal Duets for Hornsuses the first 19 of the trombone set with three additional duets added. Some of the trombone and horn duets are in the same key so they can be played together.

1. Cranium
This duet presents the cantabile ?singing? style as studied for playing the trombone. I find that this duet helps the student much like the melodies of Borgodni (Rochet) etudes.

2. Stirrup
This duet provides an opportunity to read basic rhythms and articulations. I find that the more advanced students can read in a faster tempo while the less skilled students work best in the slower tempos ? a common choice for all of the duets.
3. Humerus
This waltz helps the student match phrasing in a cantabile setting. There are a few instances where the teacher (playing the first part) plays a phrase then the student plays a similar phrase.
4. Vertebra
This is in a ?rock? style with syncopated rhythms with cantabile melodies. Articulations are especially important in this duet.
5. Axis
Legato scales and syncopated rhythms are the features of this duet. This is a good exercise for legato playing on trombone, especially when the legato tongue is needed versus when the trombonist does not need to tongue when moving across partials.
6. Tibia
This duet alternates in rock style and swing. Articulations and manipulation of ?swing? rhythms are important.
7. Clavicle
The key of A for this duet provides variation for the students.
8. Fibula nd
This duet uses the easiest of rhythms and range, especially for the 2
9. Scapula
This duet is non-metric and uses graphic notation. This was a favorite duet of my students as many had never experienced this notation before.
10. Atlas ndThis is an Invention in the Bach style. This is probably the best duet to play when the 2 part is played by bass trombone.

(student) part.

11. Radius
This duet is in a ?Medium Swing? jazz style. Each part has a chance to play a little bit of a ?walking? bass line. Articulations and manipulation of ?swing? rhythms are important in this duet.
12. Femur
This duet works on double time and half time tempo changes.
13. Patella
This is another duet that includes graphic notation. In this duet ?Free rapid legato lines? are used.
14. Anvil
This gallop displays different types of articulation.
15. Hammer
This duet is in the style of a fanfare.
16. Rib
This duet is a melody, ?Magallon Blues?, that I originally composed when I taught at a summer music camp in Magallon, Spain. In that camp each of the students would practice playing a jazz solo. This duet also has jazz chord changes so you can add piano or guitar. The use of drums is also an added option.
17. Sacrum
This duet is a short arrangement of Mozart?s ?Eine Kleine Nachtmusic?.
18. Ulna
This duet is a short arrangement of the traditional Irish folk song ?Londonderry Air?, more commonly known as ?Danny Boy?.
19. Ilium
This duet is a short arrangement of the Beethoven?s song ?Ode to Joy? which represents the triumph of universal brotherhood against war and desperation.

Gregory Fritze is a prize-winning composer and Fulbright Scholar, as well as an active performer. He recently retired from Berklee College of Music where he was Tuba Professor and Chair of Composition, serving on the faculty from 1979 to 2016. He has written over one hundred compositions for orchestra, band, chamber ensembles and soloists. He has won over sixty composition awards both nationally and internationally including First Prize in the 1991 TUBA Etude Contest for Twenty Characteristic Etudes for Tuba, an award from The American Prize for his Petite Suite for Brass Quintet and others. His compositions include works published by several publishers in the United States, South America and Europe that have been performed extensively throughout the world. Many of his compositions are available on ITunes, Youtube and Soundcloud.
His compositions are recorded on Albany Records, MSR Classics, Crystal Records, Mark Records and others. He has been a guest lecturer, conductor and performer at many colleges, universities and music festivals in the United States, Canada, Japan, South America and Europe. He was born in Allentown, Pennsylvania in 1954 and has Composition degrees from the Boston Conservatory and Indiana University. He now resides in Daytona Beach Shores, Florida.