i have several questions about tuning a trumpet:
1. so the tuner is supposed to be set to A440 correct?
2. does this mean that i have to play a concert A on the trumpet to tune or can i play any note and tune while it is set to 440?
3.which note should i tune first?
4.approximately how much should the main tuning slide be pulled out????
Im always flat so i know i need to have the slide pushed inwards.