You must not forget this TOTL Arranger is made for the HOME market. That's how Arrangers are marketed and their target. In that regard people are not in a hurry for millisecond faster loading times.

If they were to cater to the Pro market with the T3 they would have a lot of better features in many areas not the least being the harmonizer


Yamaha makes the Motif for the Pro market and features it accordingly...
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Yamaha Tyros 4
Yamaha Motif XS8
Roland RD700
Casio PX-330
Martin DC Aura
Breedlove ATlas Solo
Bose MOD II PA