I've been playing for 7 months and really LOVE playing bass. But I'm starting to get attracted to the fretless SOUND but for some reason the fretless intimidates me. I think I'm afraid I'll be playing wrong notes since their are no frets. I tested a fretless with lines on it and I sounded a complete mess. Is it a whole new ball game learning fretless or do I need to get the fretted bass down to a science before considering a fretless?