"her lack of confidence might not have been helped by to quote you "
Her lack of confidence should never have been on display in the Singers Club in the first place and had she not been so persistent and those involved so concerned about hurting her feelings, it never would have - a far cry from your finding her like "a bundle of laughs" - not my idea of the way a club should be run, obvious yours.
It is understandably that singers should prepare themselves in advance to deal with her behaviour - some of them, having forewarned themselves, managed to minimise the damage on a could of occasions.
Her bad singing was not nervous - she was asked on a number of occasions would she like to join 'London Singer's Workshop' and she said she didn't feel she needed to - she was totally unaware that she couldn't sing, that's why she choe long songs and difficult tune - it was more a case of over-confidence, if anything - something several singers not a million miles away need to be aware of
Jim Carroll