The prime and the most coveted skill for any singer is, of course, musicality, and the foremost are the ability to pitch the notes and the intervals correctly, to sight-read, and to memorise tunes easily. Armed with those skills, you can confidently sing in almost any choir, save the very elite ones. But there is also the issue of voice quality, and improvements in that department can offer you (a) more joy, (b) entry into the elite choirs, and (c) even a soloist status if you so desire.
So, how can a (male) singer improve his voice quality? (I address the “male” because: (a) men face tougher challenges, (b) I do not have sufficient knowledge of female voices; however, much of what is outlined here applies to the ladies as well).
But first: You will not want to sing opera? Right! This means that you will not need to project in a large hall and over an orchestra. And you will not need the stratospherically high notes, the elite voice’s sustainment and singing stamina. That greatly simplifies the task of making improvements to your voice. Singing opera is a tour de force, a singing equivalent of running a marathon with climbing, sprinting and weightlifting on the way. This is true for all voices, but operatic tenors exhibit almost superhuman ability when singing Belcanto, Verdi, Verismo repertoire (e.g. Puccini) or Wagner.
“When I decided to join the choir I hadn't sung for many years. But it was really easy to join, no auditions, and lots of help to learn the music. “I feel privileged to be able to take part in singing the choral classics that are part of our repertoire. As well as making new friends, I am singing music I love, brushing up on long idle sight reading skills and finding out about my community from long-time local residents."