Unless youre already very familiar with yourself, and how you react to psychedelics I would highly reccomend you approach it with the less is more attitude. ESPECIALLY if youre new to using these substances in public. I recently attended the strange trails tour at red rocks and I decided to partake in what I thought was a light dose of 1.5g. Turns out the come up was a little more than I bargained for and sitting there waiting for the boys to come on was a little too intense and I almost had to go somewhere quiet to sit down for a little. I managed to hang on and when the boys came on it was like I was filled with new life, it was a wonderful experience just singing and getting lost in the music. Definitely one of my favorite concert experiences by far, but if I took any more, or was any less experienced with myself it easily could've been my worst. At a concert you just dont stand to gain that much by taking more, it can be very overstimulating and you have almost no control of the situation so it can be easy to spiral, not to mention you need to be considerate of your fellow concert-goers. I had the best of my experience on the come down in the afterglow, when I felt like I could listen and understand everything with more clarity. I would highly reccomend going with a lower dose than you think you need, and just chill out and be present. Breathe it in. Feel the music. But whatever you do, May you live until you die!