Since their inception in the early 2000s, Loch Lomond have grown from the solo project of singer-songwriter Ritchie Young into an eight-piece behemoth. Hailing from the indie-folk mecca of Portland, Ore., the band is in the same camp as the Decemberists, Blind Pilot and Horse Feathers. LL’s latest release, Pens From Spain, rises and falls like the Scottish loch from which they take their name. Stringed instruments, elaborate choral arrangements and drum machine are the foundation for a theatrical mix of chamber-pop, electro-pop and traditional folk. Loch Lomond play on Sunday, October 9, at the Monkey House in Winooski. Chris Robley opens.