The other points made here are valid. However, I will make the assumption that the question implies at least some experience with opera. If you have attended an opera or listen to opera occasionally - say on the Met Channel on Sirius/XM, you might have enough background to find enjoyment in Wagner. read more
Siegfried and Götterdämmerung, at which point Wagner gets close to the sweet spot between his ambition and his audience. Both music scores are exceptional in their use of innovative techniques, their synergy with narratives and sheer scale, while maintaining their appealing to non-musicians. read more