Thanks, Emma - it certainly was fascinating. Perceptive, too, about great artists of whatever persuasion having to work to order for a patron - I am musing that this can either have disastrous results, such as the various Poet Laureates' largely laboured and fawning odes churned out through gritted teeth to their monarch, or triumphantly inspired ones where a composer, for example, turned the requirements of the contract into his own expression of genius - Handel's the one that sprang first to my mind.
I am just about to read the further link at the bottom of that article - 'Dealing with Rejection Bitterness' - something I feel I may need very soon