You do not realize that these sites, charts and tables are aimed at beginners. Of course +4o can be played – using the more advanced technique of overblowing. And it is even possible on your solo-tuned diatonic harp: also using the overblow method.
Indeed, with practice and patience even you can learn to play your solo-tuned diatonic harp fully chromatically. Then all sharps and flats can be played on a solo-tuned C diatonic harp. This is not to say that owning additional ones with custom reeds (as you have done: F# replacing F, for example) is bad or wrong or cheating in some fashion. It is just a fact.
Correct – especially by beginners or even some intermediate players. However, among professionals there are very few who cannot play +4o at all – in fact, I would wager that all professionals can play it. Just not all of them use overblows for various reasons, as stated in the full text of the quoted message of mine.
Perhaps it is necessary (for you) to read the original message again to appreciate the reasoning for some professionals not using overblows or overdraws. Just ask Luke @Luke or read here on the forum his own reasons for not using overblows and overdraws until fairly recently.
I don’t understand your point. This seems to be totally irrelevant to the topic being discussed, even though it is probably true.
Regards,
– Slim 