On Clonal Selection.

Clonal selection has been a dominant theme in many immune-inspired algorithms applied to machine learning and optimisation. We examine existing clonal selections algorithms for learning from a theoertical and empirical perspective and assert that the widely accepted computational interpretation of clonal selection is compromised both algorithmically andbiologically. We suggest a more capable abstraction of the clonal selection principle grounded in probabilistic estimation and approximation and demonstrate how it addresses some of the shortcomings in existing algorithms. We further show that by recasting black-box optimisation as a learning problem, the same abstraction may be re-employed; thereby taking steps toward unifying the clonal selection principle and distinguishing it from natural selection.

Organ Recital Mainzer Dom.

Concert performance in 2012 Internationaler Orgelsommer 4 August 2012. Showcase of British music from 19th and 20th centuries. Weitz Fanfare and Gothic March; Handel Organ Concerto Op 4 No 5; W.T.Best Sonata in G; Francis Jackson Toccata, Chorale and Fugue; Hollins A Song of Sunshine; Healey Willan Introduction Passacaglia and Fugue

The complete organ sonatas of August Ritter.

CD recording - Priory CD PRCD1162 - of the complete organ sonatas of August Gottfried Ritter (1811-1885) recorded on the Ladegast organ of the Kirche Altleisnig, Polditz, Germany

The Auld Alliance: Organ music from Scotland and France.

CD recording of the Rieger organ of St Giles' Cathedral Edinburgh, performed by Michael Harris, with music from Scottish composers, and composers based in Scotland, as well as French organ music from the seventeenth to twentieth centuries. Works by James MacMillan, Thomas Wilson, Kenneth Leighton, Alfred Hollins, de Grigny, Guilmant, Fleury and Franck.