Originally posted by DonZ
If we apply Lawson's logic here then very few violinists,cellists, violists, and double bassists play in tune above the "12th fret."
I disagree with that sentiment. Apparently Steve has heard a bevy of bass players that should stick to fretted because they are not musically mature enough and their hearing is not well enough developed to play in tune.
Well, Don, it depends how you define 'in tune' - what is in tune enough. Every classical string player that I know struggles to some degree with intonation. Almost all of the 'Grade 8' violinists that I know don't have particularly consistent intonation up the top of the neck. Violin is an insanely difficult instrument to develop real control over.
However, on classical string instruments, your body position, the shape of the instrument and often the figuring in the wood give you some indications of where certain notes are. You muscle memory does the rest. Most classical players that I know adopt exactly the same playing position each time they play. That's not true of the electric bassists that I know. Given that many of the different approaches to playing bass require different playing positions, and unlike violins, violas and cellos, the shape of the instrument varies hugely from one make to another. If you've got two different basses of different makes, then you may end up with two different sets of egonomic conditions (not sure if that's a real phrase but still, it'll do for now...

).
Most of the classical string players I know (so therefor this is anecdotal evidence, but probably vaguely accurate, at least for string players in the UK) spend a heck of a lot of time working on their intonation. They have to, to develop the muscle memory. Same goes for the electric bassists that I know who play unlined fretless instruments. I'd humbly suggest that I can get to a similar level of intonation accuracy a lot quicker by using my muscle memory, my ears and my eyes, using the reference of the lines. the wood on the fingerboard of my bass isn't particularly figured, so I can't use lines in the grain for reference. It's got dots along the side, but they tend to disappear in low light (I suppose I could get LEDs fitted...) So I wouldn't have much in the way of reference points to get my hands in place before I start. So I have lines. Lines that act as a guide, lines that I can learn to play ahead of or behind. All that matters is what comes out of the speakers, ultimately (or off the soundboard if you're playing acoustically...

)
Again, this is all based on my own experience and on my observations of fellow pros, students and players that I've watched - the ones who used lines were more consistently in tune. If the way you conceive of your music requires you to play an unmarked instrument and to put in the extra practice required to play without lines, that's great. As for me, I'm going to get lines on my Cello as soon as I get round to it as well... I see no advantage in not having them, and plenty of situations where they would prove very useful.
cheers
Steve
www.stevelawson.net