2022 June 19, 20, 21, 23, 24
Palais des Papes, Avignon (F)
2022 Sept 23, 24, 25, 28, 29, 30
2022 Oct 1
deSingel, Antwerpen (B)
2022 Nov 18, 19, 20, 22, 24, 25, 26
Opera, Gent (B)
2022 Dec 21, 22
iTa Rabozaal, Amsterdam (NL)
2023 Mar 25
Festspielhaus, Sankt Polten (AUT)
2023 Apr 21
De Warande, Turnhout (B)
2023 Apr 26, 27, 28
La Villette, Paris (F)
2023 May 10
Concertgebouw, Brugge (B)
hout karton papier en verf for harpsichord and soundtrack
part of the dance performance Futur Proche by Jan Martens and Opera Ballet Vlaanderen
Goska Isphording - harpsichord

2022 Apr 23 Concertgebouw Amsterdam
MASS for piano & orchestra
NTR Zaterdagmatinee
Ralph van Raat - piano
Radio Filharmonisch Orkest
Karina Canellakis - conductor

tba Rotterdam
new work for recorder, string quartet & visuals

I am a strange loop for percussion & visuals
Orlando Aguilar Velazquez - percussion


2021 11 07 De Kring Roosendaal
2021 11 12 Huis73 Den Bosch, November Music
koi dust for small ensemble
Fc Jongbloed

2021 09 20 De Pletterij, Haarlem
la tendre indifférence du monde for harpsichord
Goska Isphording - harpsichord

2021 07 17 De Link, Tilburg
la tendre indifférence du monde for harpsichord
Goska Isphording - harpsichord

2019 09 14 P.O.M., Eindhoven
la tendre indifférence du monde for harpsichord
Goska Isphording - harpsichord


video for hout karton papier en verf

hout karton papier en verf is the keywork of the new creation FUTUR PROCHE by Jan Martens for Opera Ballet Vlaanderen. The work is a result of the collaboration between harpsichordist Goska Isphording and composer Janco Verduin. The composition hout karton papier en verf (wood cardboard paper and paint) is about the work and life of the Dutch painter Jan Schoonhoven, who became known for his white reliefs: panels with regular surfaces and boxes, in endless variations.

Dance is another reference in the piece. The harpsichord, historically eminently suitable as an instrument for dance music, resembles a synthesizer. By layering sounds (a primitive additive synthesis) you attain - with some imagination - a sawtooth sound, especially with references to Go by Moby and No good (start the dance) by the Prodigy.

Click here for free access to the video.


In his music, Janco Verduin (1972) draws from concepts from a vast arrange of sources: software engineering, neurosciences and psychology, nature, physics and biology, visual arts and of course, all music known to us. With everchanging sound constellations he explores the human perception of sound, structures and meaning we give to it.

After his studies in Industrial Product Design, Music Technology and a short career as a 3D software engineer, Verduin studied at the Royal Conservatory The Hague with Louis Andriessen, Martijn Padding, Gillius van Bergeijk, and Richard Ayres. After getting his Master in 2009, he has been working as a freelance composer. He also likes to paint abstracts and create computer animations as visual 'soundtracks' for some of his music.

Janco Verduin
Photo by Janco Verduin

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He has worked with and written music for Ensemble Modelo62, Nieuw Amsterdams Peil, orkest de ereprijs, Calefax Reed Quintet, the David Kweksilber Big Band, SPECTRA ensemble, Nieuw Ensemble, ASKO ensemble, Cantus Ansambl and the Dutch Student Orchestra amongst others.

Verduin's music is performed regularly in the Netherlands and abroad, at concerts and festivals like the Gaudeamus International Muziekweek , Iordens viooldagen and November Music .
Currently he is working on a new piece for piano and orchestra.


53 subliminal modulations (2022*)
for harpsichord, electronics & visuals 8'-25'
52 new work (2022*)
for recorder & string quartet 8'
51 I am a strange loop (2021*)
for percussion & visuals 8'
50 MASS (2021)
for piano & orchestra ( 25'
49 tar pit (2020-)
for guitar 15'
48 new work (2020-)
for guitar 30'
47 pulse code modulation (2018)
for two computer controlled organs 4'
46 koi dust (2019)
for pf, [cl or vln] & [bcl or vlc] 9'
for clarinet, violin, cello, piano and percussion
45 mesoproterozoïcum (2020-)
for piano 20'
44 mirovoi (2019)
for violin, violoncello and piano 19'
43 devoon (2018)
for orchestra (2222.222.timp 2perc.hrp.str) 9'
42 ghoti (2014)
for violin and prepared piano 7'
41 la tendre indifférence du monde (2017)
for harpsichord 9'
40 hout karton papier en verf (2021)
for harpsichord 20'
39 distortion (2016)
for hammond organ and ensemble 34'
38 subspace anomaly (2018-)
for electric guitars, percussion and electronics 45'
for saxophone, electric guitar, percussion 7'
for reed quintet 7'
35 Jupiter's Pimple (2015)
for big band 15'
34 hikikomori (2014)
for percussion and soundtrack 8'
33 An Experiment on a Bird in the Air Pump (2014)
for recorder and soundtrack 7'
32 kaleidophonia II (2014)
for ensemble and barrel organ 23'
31 bokeh (2014)
for soprano, double bass, soundtrack and video (opt.) 10'
30 88|11 (2013)
for harmonium 3'
29 spin|orbit (2013)
for marimba 20'
28 Ostinatosti. (2019)
for orchestra (3333.4331.timp 3perc.hrp.str) 7'
27 string quartet No.2 (2013)
for various combinations 9'
25 alaskazalm (2012)
for 2fl 2ob 2cl asx tsx bsx 2hrn 2trp 2trb tb pf 12'
24 kaleidophonia I (2012)
for acc (solo) 2fl/picc cl/bcl ssx/asx ssx/brsx hrn trp 2trb tb perc pf egtr bgtr 15'
for orchestra (5555.8532.2timp 4perc.hrp.str) 12'
22 onze (2011)
for afl/pic cl/bcl perc pf vln vla vcl narrator(opt.) 30'
21 onhandig bloesemend (2011)
for singer, narrator and string ensemble 15'
for seven trombones 37'
for harmonium, two violins and violoncello 15'
18 three hypotheses concerning topology in Hilbert spaces (2010)
for alto flute, bass clarinet and piano 10'
17 Toccatississimo & Hyperfugue (2010)
for 31 tone organ & laptop 7'
15 4°K (2010)
for flute, clarinet, percussion, violin & cello 10'
14 nieuwBlauw (2010)
for piano 4'
13 die protestantische Ethik und der Geist des Kapitalismus (2010)
for two accordions (or two bajans) 6'
12 portret (2016)
for 2fl, 2cl, 2sx, trp, cimb, hrp, 2gtr, 2perc, db 12'
11 on time dilation and synchronicity I (2010)
for fl cl tp perc pf gtr vln vlc db 6'
10 hammer smashed phase (2010)
for fl bcl tp perc pf egtr vln vlc db 8'
9 pale (2009)
for flute and piano 15'
8 ei, a chamber opera (2009)
for alto/mezzo fl ob bs tp trb perc vln db 25'
7 refraction (2009)
for violin and piano 5'
for orchestra (3333.4331.timp 11'
5 pull the plug (2009)
for baroque orchestra 7'
4 eine kleine Übung in Erscheinungsformen und Zusammenhang (2007)
for violin 14'
for fl ob cl perc hr mnd gtr pf vln vla vlc db 10'
2 the canary and the crow (2004)
for soprano and alto 4'
1 fysica voor dichters (2003)
for baritone and piano 4'