140. Free Variations (1'39")

141. Subject and Reflection (1'15")

142. From the Diary of a Fly (1'24")

143. Divided Arpeggios (2'06")

144. Minor Seconds, Major Sevenths (3'31")

145a - Chromatic Invention (1'17")

145b - Chromatic Invention (1'18")

145. Chromatic Invention (A and B versions together on two Pianos) (1'18")

146. Ostinato (2'07")

147. March (1'45")

Six Dances in Bulgarian Rhythm

148. 4+2+3/8 (1'44")

149. 2+2+3 (1'11")

150. 5/8 (1'24")

151. 3+2+3/8 (1'28")

152. 2+2+2+3/8 (1'14")

153. 3+3+2/8 (1'50")

All the tracks performed by Claudio Colombo, on Yamaha digital pianos.