For me personally I have always found Yamaha styles to be the worst out there as they are mainly song specific, Korg as you say are very live sounding and are like you have session musicians backing you,
For me other way around. Korg does sound live but it stops there. Lack of variety of simple styles are problem. Yamaha does have song specfic styles but bass line and fills are well programmed so with simple muting it fits other songs as well.
Major reason of TOTL Korg arranger sales are middle east and balkans. Not US / UK market where Yamaha sells better for following reasons.
- mid east/ balkan require sampling of their authentic ethnic instruments
- they have their local dealers/local style creations ( depending on the country- Turkish/ arabic/ armanian/ east euro/ balkans, etc)
- most western arranger korg users use mainly for occasional arranger use but mainly as SMF/ mp3/ wave playback machine or use the sequencer
- western arranger players ‘s music fit more with Yamaha styles ( only taking about arranger styles/not SMF or sequenced Playbacks)
Mid east/ balkan arranger player find limited styles in yamaha arrangers for their genre ( no PSR tutorial site can’t help since it’ mainly for western music ( signature of 4/4 s and 3/4s). They are looking more of 9/8s which are more in Korg/ Ketrons)
Western music - meaning - pop/ rock/jazz/ easy listening/ some latin etc
( not necessarily US/ UK ), but English language songs Or English language influenced pop songs from Asia as well
- Since Korg TOTL has better hardware and VH, song book , good drum sounds etc , for solo or duo giggers who rely or presequenced music find them useful
- once you take requests and use your arranger on fly , korg’s limitations appear really quick
, and Yamaha styles became invaluable
- another reason that Korg arranger users ( mainly western users) always asking for more more styles. more free yamaha styles ( converted from Korg PA, rolands, ketrons). Not the other way around due to mega voiced styles of Yamaha)