Billy Corgan (or William Patrick Corgan as he formally likes to be known as these days) has taken an unprecedented opportunity to perform a short tour of Europe alone, airing out new work and well trodden, decades old tunes. It’s a brief sojourn from the Smashing Pumpkins who are in the middle of a somewhat renaissance tour with three of the four original members which he’ll return to in a couple of weeks. Tonight we’re dispensed with a rare intimate show from the magmatic frontman and anticipation as to what facet of his personality we’ll be presented with is palpable.…