The Pittsburgh Symphony Orchestra, which has been mired in financial quicksand for more than a year, is asking a municipal funding agency to nearly double the amount it contributes to the orchestra. The Allegheny Regional Asset District gave the orchestra $725,000 last fiscal year, on a request for $900,000. This year, the PSO says it needs $1.5 million, which will likely be a hard sell at a time when states across the U.S. are strapped for cash themselves.