gathered some 150 players from around the world most of them are over 50 years old but there are younger musicians with a love for the unusual instrument. for. one seems to be a developing trends as at various young our players are trying to move away from the 4 drawer element and are playing in more for just a reaction or an chromatic pitch us to the extent that's possible. so say this middle his. horn has a range that's known as the harmonic series $12.00 to $16.00 tons can be played per instrument that's enough for contemporary music which these 3 called the alpine systems can do especially well. it's not possible to play everything of course but