links still open after I finished writing:

45 minute long BBC Radio 3 interview with William Forsythe, with transcript. Very useful
(Also saved in my pdf files with highlights and notes)
http://www.bbc.co.uk/radio3/johntusainterview/forsythe_transcript.shtml

“…art forms are connected with different forms of time. At the moment I have the feeling that art is a manifestation of death, connected to a secret, when people are aware of the mechanisms of absence. Trance is related to that.  And dance is…”
(William Forsythe in an interview with Johananes Oldentahl in “Tanz Korper Politik”)

Presence and absence have always been connected to dance as an art form. The body as a medium between transcendence and materialization. In most cases dance is supposed to be a way of disappearing. Even in dance history, the hard core within that history, dance itself is absent.  A possible dance history has been substituted by another history; the history of the body.

At the beginning of the 21st century the body has found itself in the midst of pain, fear, chaos and war. Being endlessly attacked and constantly de-centered and above all trapped between fleeting physical-material acts within a confusion of bodies, concepts and strategies. We find ourselves encaged in all the diverse media´s imaginable and we stand inside all the possible spaces at once in all bodies we can think off. Within the works of contemporary choreographers like Forsythe, Charmatz, Le Roy and Stuart the absence of the body is as present as it is absent. 

Is there a connection to the revival of the hidden body in religion? To the renewed interest in shamanism and body rituals?  The discussions about the non-image in Judaism or Islam, the replaced body, the sacrificed bodies, ghosts and energies?  As a contribution in the discussion and research The School for New Dance Development (SNDO) in collaboration with the Lectoraat AHK presents between 21 May and 8 June 2007, a series of workshops and lectures called The Absent Body.
Absent Body, University in Netherlands, Hochschule der Künste
http://www.ahk.nl/lectoraten/kunstpraktijk/coproducties-en-projecten/absent-body/

Deleuze: Writing and Difference, the whole books as pdf file to read online
http://webdelprofesor.ula.ve/humanidades/anderzon/materias/materiales/Writing_and_Difference__Routledge_Classics_.pdf

Categories, Beauty and Dance

Dana Casperson resonding to comments at the Walker Art Center, 2007, some insight, nice to read from someone in Forsythe's company (his wife) http://blogs.walkerart.org/performingarts/2007/04/

Exploring the Abstract Language of Contemporary Dance in order to create Emotional stances / nuances - a Masters of Arts Dissertation - 2006 - Csaba Steven Buday
A long dissertation by a dancer who has danced with Forsythe.
http://eprints.qut.edu.au/16420/1/Csaba_Buday_Thesis.pdf

Scribd Documents, 3 pages on William Forsythe, some general information some useful additional information . Starting page 145. from book: Fifty Contemporary Choreographers. Bremser, Martha
Routledge 2005 (first published 1999)
 http://www.scribd.com/doc/57280358/24/WILLIAM-FORSYTHE

Derrida / On Femininity, p.135
Of the Presence of the Body: Essays on dance and Performane Theory
Lepecki, Andre
University Press of New England (2004)
http://books.google.co.uk/books?id=WwK-lFzmAhAC&pg=PA135&lpg=PA135&dq=dance%22+trace+derrida&source=bl&ots=31cfgRcipa&sig=tGddQAyA0UmRyGRxYbydupu8iiU&hl=en&redir_esc=y#v=onepage&q=dance%22%20trace%20derrida&f=false

Wikipedia, Trace (deconstruction) - Derrida, Spivac
http://en.wikipedia.org/wiki/Trace_(deconstruction)

In my saved pdf files"
Journal of Architecture
Dance and drawing, choreography and architecture
Steven Spier

text: notes from 'Abwesenheit' a book in german about choreography and performance

reference book: Abwesenheit, eine performative Ästhetik des Tanzes; William Forsythe, Jerome Bel, Xavier Le Roy, Meg Stuart. (written by Gerald Siegmund, 2006, publisher: Transcript)

The bodies of dancers are exhibited by Jerome Bel and Xavier le Roy; deforming them, reducing each movement to it's function.

The movements of William Forsythe and Meg Stuart are no longer beautiful in a classical sense. Forsythe became increasingly radical since the 1990's, confusing the audience. p.09

Q: what does it mean to dance on stage in front of the audience and to watch dance from the auditorium? [Dance and cultural themes that make apparent the engagement / argument between radical contemporary dance & the Christian body image] p.09

Abwesenheit: empty space, use of the body, separation of hearing and seeing, where in each case one parameter is made absent. The stage scene receives significant gaps / absences spurring the self imagination of the audience. P.10

With the term ‘absence’ it’s counterpart: presence is evoked. Can not been seen separate from each other.

“The engagement with ‘absence’ also: to open a space in Art, in which the subject is no longer reflected, doesn’t encounter itself as self but as other” p.11

(Lacan theory of split subject of the unconscious)?

“The dancing body appears thus as desiring body, that is simultaneously in relation with: The symbolic, the imaginary & the real” p.11