Place the red disc within your field of vision while recording or being recorded. Conceal the red disc when not recording or being recorded.

Read faces for suggestions on how to use Partial Previews.

Partial Previews are proportionate to one’s ratio of uncertainty to action as faces become less blank.

This is Suppedaneum no. 27.


Noé Cuéllar and Joseph Clayton Mills are Partial.
Noé Cuéllar is founder of Future Vessel, a repository for unclassifiable documents to listen to, view, and hold, including works by Coppice [research consortium for experimental music] since 2009, and Nestor since 2018. He has performed and presented sound installations for numerous venues in Chicago including the Pritzker Pavilion, The Arts Club, Cultural Center, Goethe-Institut, University of Chicago, and Kavi Gupta; received commissions for new work from the Museum of Contemporary Art Chicago and Experimental Sound Studio in partnership with the Chicago Park District, Chicago Film Archives. He has been artist-in-residence in various institutions internationally, and published music on artist-run labels including Another Timbre (UK), Aposiopèse (FR), Entr’acte (BE), Notice Recordings (US), and Senufo Editions (IT).


Joseph Clayton Mills is an artist, composer, and performer working at the intersection of language, composition, and archival practice. A former Chicagoan, he remains an active participant in the improvised and experimental music community there, where his collaborators have included Adam Sonderberg and Steven Hess (as Haptic), Michael Vallera (as Maar), Noé Cuéllar (as Partial), Jason Stein, Michael Pisaro, and Olivia Block, among many others. His recordings have appeared on numerous labels, including Another Timbre, FSS, and Entr’acte. In 2013, in collaboration with Noé Cuéllar, he launched the label Suppedaneum to focus on releasing scores and their realizations. He has received commissions and grants from the Chicago Film Archive, Black Cinema House (Rebuild Foundation), the Illinois Arts Council, the Experimental Sound Studio, and, in 2016, was artist in residence at the Sonic Arts Research Unit at Oxford Brookes University, UK.











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1. One matte gray paper folder, slightly textured, with a single interior pocket. The folder measures 6 ½ inches by 8 ¼ inches and weighs 1 oz (27 g). The word “Previews” is embossed on the cover in a serif font.

2. One audio cassette with blue leader tape, encased in clear acrylic with silver metallic foil labels affixed to both sides, held together with five small black screws. The cassette is blank and approximately 30 minutes in duration. The cassette measures 4 inches by 2½ inches by ½ inch and weighs 1.1 oz (31 g).

3. Two acrylic dice, one of which is black with white markings and one of which is white with black markings. On each of the dice, two faces are marked with a single line, horizontal or vertical depending on the orientation. Two faces are marked with a cross consisting of two lines of equal length. Two faces are blank. The corners of the dice are rounded. Each of the dice is ⅝ of an inch in height. Each of the dice weighs 0.2 oz (4 g).

4. Three rectangular sheets of blank white paper. One sheet is matte cardstock; one sheet has a glossy, reflective sheen on one side; and one sheet is translucent vellum. Each sheet measures 5 inches by 7 inches. The cardstock sheet weighs 0.1 oz (3 g). The glossy sheet weighs 0.2 oz (4 g). The translucent vellum weighs less than 0.1 oz (less than 1 g).

5. One hexagonal pencil with #2 graphite lead, sharpened, with a soft nonsmear latex-free eraser affixed to one end. The other end is sharpened. The pencil is painted red, is approximately 3 ¾ inches in length, and weighs 0.1 oz (3 g). This pencil is certified to conform to ASTM standard D4236 by the Pencil Makers Association of America.

6. One smooth red acrylic disc, the surface of which is blank and slightly reflective, 2 inches in diameter and ⅛ inch in thickness, weighing 0.3 oz (7 g).