does anyone have a good tuning exercise? One that may not require a tuner. The problem I am having is that I practice with drones (like what you would find on the tuning cd) however as much as this helps my tuning (with the drones), the various groups I play with all play in various cents (sharp or flat). I am finding it difficult to play in a group that is usually sharp and then go to a brass quintet and find that they play flatter. All the while I am in tuning lah lah land Are there any good exercises out there that will help train my ears (and chops) to cope with the different situations I've described?