// GET: api/Musicians/instruments/genres/locationLatitude/locationLongitude
public async Task <IHttpActionResult> GetMusicians(string instruments, string genres, string latitude, string longitude)
{
var instrumentIds = instruments.Split(',').Select(int.Parse).ToList();
var genreIds = genres.Split(',').Select(int.Parse).ToList();
var musicians = await db.Musicians.ToListAsync();
var result = musicians.Where(musician => musician.Instruments.Any(x => instrumentIds.Any(y => y == x.Id))).ToList();
result = result.Where(musician => musician.Genres.Any(x => genreIds.Any(y => y == x.Id))).ToList();
return(Ok(result.OrderBy(
x =>
LocationHelper.GetDistanceKM(x.LocationLatitude, x.LocationLongitude, Convert.ToDouble(latitude),
Convert.ToDouble(longitude)))));
}