Hurtgranny I am just curious but what doesI tried everything I could to come up with a solution mean? It sounds to me as if you mean you have tried to talk her round and change her mind. I could be wrong, and I am sorry if I am making an assumption.
Being a new parent is very challenging. As a new parent we need to learn to trust our own judgement and make choices that may be hard.
I was very fixed in how I wanted to parent and fortunately my mum and in-laws respected this. I do think it helped to make things much smoother between all of us when I became a parent for the first time.
I think there is something quite different about baby singing (as with baby sensory) which is different to say a play group or a soft play place. The idea is to build the relationship between mum and baby, or between dad and baby. Some places are less definitive about this than others.
Hurtgranny can you try and work with your daughter to find useful, helpful, positive ways to be part of babies life that she is happy with too? Do you mind the fact you need to do most of the driving? When my nephew was born my parents were very involved, by the time I produced a dd they were not in a position to help. But my nephew was very much the golden boy, for all of us, the first, and they and the other grandparents went out of their way to help my sister, driving to collect my nephew, dressing him etc, feeding him, and then preparing a meal for my sister when she came to collect him after work they did that once a week and a second time a week sometimes too. This was immensity helpful for my sis.
It may be when your grandchild is older your daughter may be ready to ask for help. Please work on the attitude you have about this (in the nicest possible way) so if you are asked you can reply in a way that you really feel (e.g. if it is too much say so, if not and you want to do it, so say) and not in any way feel put out that you were not asked to do things when baby was little. My dd was exclusively breastfed for the first 6 months and rarely out of my sight.
Anyway, it may be you are included in more things and you will always be able to say yes or no, it would be strange if mums or dads expected their parents to babysit or child care. The relationship goes both ways, just don't allow this to sour your relationship to your dear daughter because there may be many more magical times ahead, especially at Christmas, and to create bad feeling now would be very sad.
We are all different. Parents can ask and grandparents can say yes or no, and vice versa.