Start with the low‑energy opener that gets people relaxed, then spike the tempo every third song, but throw in a hidden interlude right after the first big hit to keep the mind guessing. Mix familiar riffs with an unexpected key change every fourth track, and finish with a crescendo that lets the crowd sing along, but leave a surprise encore riff for the night’s end. The trick is to keep the pattern visible enough to feel predictable, then break it at the exact moment the audience expects it. That’s the night‑time math for a punchy, unpredictable show.