Just sharing my current Multi-12 kits setup, including 20 extra melodic GM kits that add more variety, also when midi controlling a keyboard synth and mixing it's output into the Multi-12 Aux Input.
I've set up the pad voice tunings for a useful range of 'white key' notes, but if you prefer the 'black key' notes just copy kit U102 and change the GM voices (refer to Data lists, pg14).
Btw, some voices may require their Release time to be adjusted (in the VCE3-3 menu).
Most of the original M-12 preset kits have been reconfigured for easier playing (compare kits P50 & U01) and more convenient switching combinations of acoustic and electronic kits (in U101 to U150).
Some kits are setup to play with a Hihat pedal switching Variation effects (flanger/phaser/chorus) and 2 kick pedals (eg KU100) connected to Inputs 14/15 for pitch shift or other pattern functions - there's a modified version of P-128 (P/Bnd Ctr2) in U/PTN-50 for a quiet switching transition. I've also added various cymbal & percussion sounds for inputs 16/17.
EXTRA GM/MELODIC KITS:
U081:GM105=Sitar ... U082:GM104=Sci-Fi ... U083:GM95=HaloPad ... U084:GM73=Piccolo
U085:GM77=Bottle ... U086:GM47=Harp ... U087:GM33=AcousBass ... U088:GM25=NylonGtr
U089:GM09=Celesta ... U90: GM01=GrandPiano ... U091:GM108=Koto ... U092:GM101=Brightness
U093:GM97=RainPad ... U094:GM65=SopranoSax ... U095:GM84=ChiffLead ... U096:GM46=Pizz.Str
U097:GM37=SlapBass2 ... U098:GM28=CleanGtr ... U099:GM19=RockOrgan ... U100:GM03=ElecGrand
REVISED USER KITS:
U101:Vibraphone(P43) ... U102:Marimba(P42) ... U103:SteelGtr(*P47) ... U104;DistGtr(*P40)
U105;Dulcimer(*P41) ... U106:SteelPan(P44) ... U107:Kalimba(*P11) ... U108:Balafon(P45)
U109:Indy Melody(P31) ... U110:Japan(P12) ... U111:Taiko Drums(P35) ... U112:Indian Drum(P32)
U113:Tabla Hand(P04) ... U114:Bollywood(P33) ... U115:Tabla Ensem(P34) ... U116:India(P30)
U117:Arabic(P36) ... U118:Africa(P37) ... U119:Brazil(P29) ... U120:Cuban Stick(P28)
U121:Conga Hand(P05) ... U122:PercsMaster(P01) ... U123:Ragga Guy(P25) ... U124:Large&Metal(P46)
U125:Orchestra(P39) ... U126;Drum Core(P38) ... U127:Cocktail(P50) ... U128:Oak Custom(P09)
U129:HardRock(P10) ... U130:Hipgig(P49) ... U131:E-Gate Kit(P16) ... U132:80s Electro(P02)
U133:NuRezo Kit(P13) ... U134:E-Trad Kit(P14) ... U135;Dim RnB(P26) ... U136:Electro Kit(P15)
U137:EleTomSet(P17) ... U138:SynT&PSet(P20) ... U139:Toycussion(P18) ... U140:The Ambient(P19)
U141:Leftfield(P23) ... U142:HouseClasic(P27) ... U143:Sweet RnB(P03) ... U144:FillsMaker(P07)
U145:TraxMaster(P22) ... U146:HandScrtch(P06) ... U147:Vocal Drums(P48) ... U148:TECH Keys(P24)
U149:UpliftTranc(P21) ... U150:Movie FX(P08)
EXTRA YAMAHA ELECTRONIC KITS:
U155:ClassicDance ... U156:Classic RX ... U157;Drum’n’Bass ... U158:HipHop ... U159:House
EXTRA YAMAHA ACOUSTIC KITS:
U161:Jazz Maple ... U162:Oak X Kit ... U163:Vintage ... U164:Rock Kit
To try these revised and extra Multi-12 kits just download and instal my M12ALL3.MTA data file, or the individual M12KITS3.MTK, M12PTN3.MTP, M12TRGS3.MTT and M12UTIL3.MTU files from Dropbox: [DTXMULTI files]. First save the current data files to USB memory if you want to reload any of your kits, waves or patterns.
The optional Yamaha electronic or acoustic kits can be combined with the revised kits - I've added the kit setups for each of them and provided their ALLWAV files in EL_WAVES.MTW (35MB) and AC_WAVES.MTW (62MB). This option saves using Yamaha's .MTA files download, which replace all your User kits, wav samples, patterns, trigger and utility settings. The wave memory limitation of 64MB allows only one of the Allwave files to be loaded (Manual page 94). The kits that don't have their wave samples loaded are going to sound a bit strange as both wave sets use a similar number sequence. Expect a load time of over 4 mins for the EL_WAVES file (more than double that for the AC_WAVES file).
I'm interested in any other ideas to improve the Multi-12 as it's a 'work in progress',