My final update from Slovenia in case these have been interesting or useful for anyone:
Yesterday I visited Piran, on the Adriatic coast. It's a small town, and it felt like I was in nearby Italy. There wasn't much to do - it's more about relaxing by the water.
Today, as planned, I hiked to the top of Mt. Stol. I had planned on doing this the day after the concert, but didn't have enough energy. I made it tougher on myself by starting near the reservoir (rather than taking a taxi to the mountain hut, which would have reduced the ascent by about 600 meters). It was much more strenuous than I expected, and I was far behind schedule (at times I was worried about descending in the dark). There were several instances when I considered turning back, but I kept going. The final section was treacherous, as there was more snow than I expected. From the top, I was able to look down into Austria. My plan was to play "Death of the Celts" from the summit (the line about "the road, it winds uphill all the way" seemed appropriate) - but it was already late in the afternoon, and there was an ominous storm cloud drifting in, so I started the descent almost right away. The descent was tiring, but I got back to the bus stop as the sun was starting to set. Overall, including transit time and dinner, I was out for about 14 hours.
The highlight of the trip, of course, was the concert. But I'm glad the band picked Slovenia. It's a country that, six months ago, I knew virtually nothing about, and probably never would have otherwise visited.
Many thanks again to
@Diplomat and
@matic22 for help with my questions over the past few months. (If you're ever visiting Canada, especially Toronto, you know who to ask).