The best musical events, whether they be jazz, folk, opera or rock festivals will be high octane, pricey and crowded.
Best to buy tickets as soon as they go on sale though some ticket sellers pass on most of their stock almost immediately to affiliated resellers who then sell them for a higher price.
Furthermore, some touts use high speed, multi-address software to grab all the tickets online as soon as they become available.
Calendar Dates are sometimes unconfirmed and occasionally unreliable, so check before booking. TBC/A = To Be Confirmed/Announced