The current group, which has evolved over the past 20 years and has attained the legal rights to use the name, at each performance, acknowledges and pays tribute to the original members that preceded them.
The current group acknowledges and pays tribute to the original members. These original members preceded them. The current group has evolved over the past 20 years. The current group has attained the legal rights. This was at each performance. This was to use the name.