private IEnumerable <string> GetOrchestras()
{
return(MusicFiles
.Where(x => x.GetOrchestra() != null)
.Select(x => MusicOptions.ReplaceAlias(x.GetOrchestra()))
.Distinct(comparer)
.OrderBy(x => x));
}
private IEnumerable <string> GetConductors()
{
return(MusicFiles
.Where(x => x.GetConductor() != null)
.Select(x => MusicOptions.ReplaceAlias(x.GetConductor()))
.Distinct(comparer)
.OrderBy(x => x.GetLastName()));
}