Hi. I've been playing electric bass for over twenty five years and just recently purchased a double bass. I'm having some problems with some fundamentals. First: Tuning. The three tuners that I own and have used on my electric will ot even register with the double bass. I guess the sounds are two low. From what I've read, one can seriously damage a double bass by tuning too high. However, after tuning by ear, it seems much too low. Are there any online samples of double bass sounds that I can use to tune with? Second: Bowing. As a complete novice to bowing, I'm lost. Drawing the bow across the strings creates absolutely no sound. Do I need rosin to creat a sound or am I just doing it wrong. Anyone's help would be appreciated.