This spring, BBC National Orchestra of Wales celebrates its 90th birthday and to mark this milestone, the Orchestra is inviting people to share their stories and experiences. Stories could include seeing or performing with the orchestra, meeting a musician or taking part in a workshop. The stories gathered will form part of the birthday celebrations in April 2018.   Michael Garvey, director of BBC National Orchestra and Chorus of Wales says “We’re looking forward to celebrating next year with the…