Among what one might call the third-tier jam band sect, Twiddle has really been gaining prominence over the last year of touring (with The Werks not too long ago, and Aqueous this past winter) and the 2016 summer festival circuit. Teeing up another big season, Twiddle rolls through town again, and we’ve got to admit: This is a pretty compelling band, and one worth watching. Plump Chapter 1 sort of expanded their rootsy, almost Tea Leaf Greenish sound and ushered them into bigger venues. Tunes like “Amydst the Myst” and “Syncopated Healing” do seem stronger than their earlier work, and growth like that certainly matters. (Still, we can’t help but hope for a good “Frends Theme” at tonight’s show.) (Sandy)