Simeon Pironkoff, Krassimir Sterev, Wu Wei, Musica Nova Sofia Ensemble, Dragomir Yossifov, Trio AMOS – Skin Double - Works With Accordion & Quarter-Tone Accordion (2017, CD) - Discogs
Quarter Tone Accordion / Accordéon à quarts de ton - YouTube
Quarter tone - Wikipedia
Oriental Balady Accordion quarter tone | Paris
Jukka Tiensuu: Anomal Dances, Concerto for Quarter Tone Accordion (2/2) - YouTube
Quartertone Accordion Introduction (Maria Zubimendi, Caspar Johannes Walter) - YouTube
Her Majesty the Fool | Instruments and Electronics
24 Preludes Op. 22 by Ivan Wyschnegradsky » Piano Sheet Music
The Arabic Accordion
Grenseskogen / The Border Woods, Riksscenen Sep 15 2016 | My Arabic maqam tuned accordion meets Johan Hedin's Swedish invention, the quarter-tone tenor nyckelharpa! A snippet from the end of my piece...
How to Read Accordion Sheet Music - Accordion Notation Explained
Ispilu: Works for Quarter-Tone Accordion | Divine Art Recordings
Unique sound of Arabic accordion music and Maqam – Accordion Buyer's Guides and more!
Instruments that play between the notes
Quarter-Tone Accordion: New Music Through a New Instrument - YouTube
Quarter tone - Wikipedia
Arciorgano and Quartertone Accordion - YouTube
Nader El Shaer demonstrates a quarter-tone accordion - YouTube
Lore Amenabar Larrañaga: Quarter-Tone Accordion | Royal Academy of Music
Oriental Balady Accordion quarter tone | Paris
Grenseskogen / The Border Woods, Riksscenen Sep 15 2016 | My Arabic maqam tuned accordion meets Johan Hedin's Swedish invention, the quarter-tone tenor nyckelharpa! A snippet from the end of my piece...
Unique sound of Arabic accordion music and Maqam – Accordion Buyer's Guides and more!
Lore Amenabar Larrañaga: Quarter-Tone Accordion | Royal Academy of Music