protected override async Task OnParametersSetAsync()
        {
            OrchestralPieces = await OrchestralBriefcasesService
                               .GetAllOrchestralPiecesForBriefcase(Id);

            var orchestralBriefcase = await OrchestralBriefcasesService
                                      .GetByIdAsync(Id);

            OrchestralBriefcaseName = orchestralBriefcase.Name;
        }
        protected async Task OnDeleteOrchestralPieceAsync(int orchestralPieceId)
        {
            await OrchestralPiecesService.DeleteOrchestralPieceById(orchestralPieceId);

            OrchestralPieces = await OrchestralBriefcasesService.GetAllOrchestralPiecesForBriefcase(Id);
        }