radfrad,
Glad you still enjoying Glenn Hughes and his vast contribution to the music community. Mr Hughes is getting on in years as well. I found Glenn Hughes radio on my (Sprint)Galaxy S6 phone!
Regarding Trower, he's old school for sure. And he's 71 years old. Still one of my favorites. You cannot deny that he has a unique sound. Thats what draws me in. I've not seen him live. Friends have seen him, in the same type of setting. However Davey Pattison was on board to lend some showmanship. I'm told he sounded fantastic ten and I'm glad you had a chance to go.
So far today I've listened to Manfred Mann's Earth band, Angel Station (1979).
And I pulled his cover of Springsteens, "Blinded by the light". Much better than the Boss' original, in my opinion.
N