Ariel Posen has become a well-respected guitarist since joining the Canadian roots-rockers the Bros. Landreth in 2013. Along the way, he has received standing ovations not only from his audiences but also from outlets such as Rolling Stone; Music Radar, the readers of which voted him among the top rock guitarists of 2019. He currently tours as a trio and with Bros. Landreth. See them perform as part of the Columbia Festival of the Arts’ Free LakeFest Weekend presented by the Merriweather Arts and Culture Center, June 12-14, at the Downtown Columbia Lakefront.