tracks a1, b1, b2, c1, c2, c4 to d1, e to h bass clarinet Michel Pilz tracks a1, b2, b4, c2, c4, d1 to h contrabass [À 7 cordes] Paul Rogers coordinator [initiateur et coordinateur du projet "l'etau"] Hazel Miller design [conception livret intérieur] Thierry Müller tracks a1, a2, b2, b4, c1, c4 to h drums, percussion Jean-Noël Cognard graphics [graphisme coffret et etiquettes vinyles] Mika Pusse tracks a1, a2, b1, b3 to c1, c3, c4, d1 to h piano, piano [prepared piano], maracas Keith Tippett recorded by [prise de son], mixed by Patrick Müller technician [assistant son] Alexandre Lemaure technician [assistant son] Paul Percheron text by [texte livret], photography by Philippe Renaud Recorded At Auditorium Du Conservatoire De Châtenay-Malabry Recorded At Instants Chavirés Disques Nr.1 et Nr.2 enregistrés le 04 et 05/03/2013 à l'Auditorium du Conservatoire de Chatenay-Malabry - Studio Pierre Schaeffer Disques Nr.3 et Nr.4 enregistrés le 05/03/2013 en public aux Instants Chavirés - Montreuil - Paris