I Fiamminghi

- Le Carnaval Des Animaux - Le Cygne
- Dream Melodies for Candle Light Dinners · 2010
- Fratres (Version for Strings & Percussion)
- Arvo Pärt: Fratres · 1995
- The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo (Arr. Y. Kondonassis & R. Werthen)
- Beautiful Wedding: Prelude · 2006
- Cantus in Memory of Benjamin Britten
- Arvo Pärt: Fratres · 1995
- Kleines Requiem für eine Polka, Op. 66: IV. Adagio Cantabile
- A Hidden Life (Original Motion Picture Soundtrack) · 2019
- Prayer of Saint Gregory, Op. 62b
- Hovhaness: Celestial Gate · 1995
- The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo (Arr. Y. Kondonassis & R. Werthen for Harp & Orchestra)
- Breathe: The Relaxing Harp · 1999
- Fratres (Version for Violin, Strings & Percussion)
- Arvo Pärt: Fratres · 1995
- Summa
- Arvo Pärt: Fratres · 1995
- III. Allegretto
- Music of Hovhaness · 2000
- I. Largo, maestoso e grave
- Music of Hovhaness · 2000
- The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro (Arr. Y. Kondonassis & R. Werthen)
- Bella Tuscany: Music Inspired by Tuscany · 2004
- The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": I. Allegro non molto (Arr. Y. Kondonassis & R. Werthen)
- Bella Tuscany: Music Inspired by Tuscany · 2004

Renaissance of the Spirit: The Music of Orlando di Lasso and His Contemporaries

Renaissance of the Spirit: The Music of Orlando di Lasso and His Contemporaries

2000
Vivaldi: The Four Seasons (For Harp & Orchestra)

Vivaldi: The Four Seasons (For Harp & Orchestra)

1999
Tavener: The Protecting Veil & The Last Sleep of the Virgin

Tavener: The Protecting Veil & The Last Sleep of the Virgin

1998
Music of Takemitsu

Music of Takemitsu

1998
Music of Pēteris Vasks

Music of Pēteris Vasks

1997
Kancheli: Light Sorrow & Mourned by the Wind

Kancheli: Light Sorrow & Mourned by the Wind

1997
Corigliano: Creations and Other Works

Corigliano: Creations and Other Works

1996