Running until May 16th, this year’s NI Mental Health Arts Fest has brought together a programme of varied, vivid arts events that aim to create a platform for high-quality artwork that deals compassionately and intelligently with mental health. Among the highlights so far is new music from Belfast drone pop septet Documenta. Taken from the Joe Greene-fronted band’s forthcoming double LP, Drone Pop #3, ‘Silverwood’ captures the band’s craft at its most carefully woven. D eft and darkly in all the right places, the seven-minute track is accompanied with a stellar video by Belfast filmmaker, photographer and occasional TTA contributor Colm…