The Juno-winning musician and songwriter rides a layered new album into Saturday’s Massey Hall show. Nick Krewen Music, Published on Wed Feb 25 2015 Dan Mangan is going deep. The 31-year-old eloquent, observant singer and songwriter has returned with a newly named band Blacksmith to introduce what’s arguably his finest album to date in Club Meds. The Smithers, B.C., native views the CD, his first since 2011’s Juno-winning Oh Fortune,…