For at least the two hundred and sixth week in a row, it’s been a rough week. To meet the intense desire to find something to sooth my anguished inner, Vagabon comes to the rescue. Making it all the more sweet, she brings Courtney Barnett along to help. The duo plies their impeccable craft on the well-traveled Tim Hardin composition “Reason to Believe,” and it is lovely, soulful, and extraordinary.