Here’s a great Planxty clip from 1974 with a wonderful Christy Moore vocal and some very sensitive mandola accompaniment from Andy Irvine.
Here’s an interesting bit on the mandola from Andy Irvine’s web site:
Classicly, a mandola should be tuned way down to CGDA but I always thought this stupid with a Gibson because it didn’t have a big enough body, nor a long enough string length to cope with the hawser-like strings required. So I thought it logical–as it was two frets longer than a mandolin– to tune it a tone lower, using mandolin strings. So I tune it FCGC (I nearly always have the top string tuned down a tone)