Wasn't sure where to post this question...but I'm a beginner on double bass (coming from bass guitar) and I have trouble sometimes finding the exact pitches of notes since of course double basses for the most part are fretless and the spacing is different. I know bridge height/placement and a host of other things affect this, but: If I were to get one "fret", say F on the E string, is there a universal, measurable distance to F from F#? Then from F# to G, etc. so that I can make very precise guidance markers on my bass? It would make it alot easier than standing at my piano and trying to get the correct pitch while plucking and holding the string on the bass. Thank you!