Hi Bryon - good reply. I grant your point that 4) does not necessarily follow from 3) ( truthfulness of types of recordings cannot validly be inferred from the repeatability of types of performances).
However, I completely disagree with you about 4) itself. 4) to me is an obviously true statement (that's why I didn't mention it), and I am a little puzzled as to why you think it is false. Any recording engineer will tell you that electronic instruments are MUCH easier to record than acoustic instruments or voices. Despite the more complex wave forms today's digital systems are capable of creating, these wave forms are still far less complex than those created by acoustic instruments and voices (they still haven't even come close, despite the theoretical potential). The simpler the timbre, the easier it is to reproduce, and the easier it is to tell whether or not the reproduction is "truthful." Electronically produced sounds are also much less affected by room acoustics, at least when we are considering timbre, especially if the room in question is a recording studio. Electronically produced tones can be 100% controlled, regardless of environment, making them much easier to record. You brought up the point that we are less familiar with electronic timbres. This may be true, but I think that this is actually irrelevant, especially since as you said we are speaking of recordings, not the live event. A recording engineer can know EXACTLY how an electronically produced tone is going to sound. This is NEVER true of acoustic instruments or voices, even the same exact player of the same exact instrument in the same exact environment from one day to another. This is a big reason why engineers want to make sure that a recording of any given song or movement of a multi-movement work is finished in one session - it is simply too difficult to reproduce the exact same pitch level on a different session (which is why many engineers/orchestra conductors still forgo patch sessions when making a "live" recording). This is of course no problem for electronic instruments.
Based on the above, then, it follows that one can be much more of an objectivist about electronically produced music. The standard for judging "truthfulness" can be much more, not less exact than with acoustic instruments.
However, I completely disagree with you about 4) itself. 4) to me is an obviously true statement (that's why I didn't mention it), and I am a little puzzled as to why you think it is false. Any recording engineer will tell you that electronic instruments are MUCH easier to record than acoustic instruments or voices. Despite the more complex wave forms today's digital systems are capable of creating, these wave forms are still far less complex than those created by acoustic instruments and voices (they still haven't even come close, despite the theoretical potential). The simpler the timbre, the easier it is to reproduce, and the easier it is to tell whether or not the reproduction is "truthful." Electronically produced sounds are also much less affected by room acoustics, at least when we are considering timbre, especially if the room in question is a recording studio. Electronically produced tones can be 100% controlled, regardless of environment, making them much easier to record. You brought up the point that we are less familiar with electronic timbres. This may be true, but I think that this is actually irrelevant, especially since as you said we are speaking of recordings, not the live event. A recording engineer can know EXACTLY how an electronically produced tone is going to sound. This is NEVER true of acoustic instruments or voices, even the same exact player of the same exact instrument in the same exact environment from one day to another. This is a big reason why engineers want to make sure that a recording of any given song or movement of a multi-movement work is finished in one session - it is simply too difficult to reproduce the exact same pitch level on a different session (which is why many engineers/orchestra conductors still forgo patch sessions when making a "live" recording). This is of course no problem for electronic instruments.
Based on the above, then, it follows that one can be much more of an objectivist about electronically produced music. The standard for judging "truthfulness" can be much more, not less exact than with acoustic instruments.