Nyiregyhazi left significant numbers of unpublished recordings during this period. This page is mainly composed of unpublished materials that will not be included in the Music and Arts release(see the track).

Brahms piano sonata No.3
1st movement
2nd movement
3rd movement
4th movement
5th movement
(12/17/1972, Century Club)

Liszt: Annees de pelerinage Premiere annee Suisse S.160, No.7 "Eglogue"
(12/17/1972, Century Club)

Liszt: Legendes No.2, "St. Francois De Paule Marchant Sur les flots" ("Wave")
Old First Church, 5/6/1973
(This was published by Desmar, and also will be included in Music and arts CD)

Chopin, Mazurka In C-sharp Minor, Op6
Old First Church, 5/6/1973

Debussy, "La Plus Que Lent"
Old First Church, 5/6/1973

Debussy, "Pagodes"
Old First Church, 5/6/1973

Schubert=Liszt "Am Meer"
5/6/1973, Old First Church

Liszt, Funeral March "In memory of Maximillian, Emperor of Mexico"(Marche funebre (In magnis et voluisse sat est)
5/24/1973, Forest Hill Club

Brahms, Rhapsody OP.119-4
5/24/1973, Forest Hill Club

Liszt, "Sunt lacrymae rerum"
5/24/1973, Forest Hill Club

Liszt, "La Lugubre Gondola"
(This recording does not have the first 27 seconds.)
5/24/1973, Forest Hill Club

Liszt, Au lac De Wallenstadt
R. Antolinoli, 7/29/1973

Liszt: "Il Penseroso"
R. Antolinoli, 7/29/1973

Liszt, "Dante Sonata"
R. Antolinoli, 7/29/1973

Liszt: Faust symphony, the 2nd movement "Gretchen"
Ronald Antonioli's home, 4/30/1978

Wagner: "Liebestod" from "Tristan und Isolde"
CTV documentary, 1978

Rachmaninoff Piano Concert No.2, 2nd movement
Dai-ichi Seimei Hall, 1/21/1982 (Link)