Amino: Thanks for your links. I will check the emu, the only i didn´t test yet. The yama is very good, i have a friend using it but it has too many functions, sounds and features i don´t need, and, beacause of so, it´s too expensive for what i need. Thanks anyway.
About the volume control i mean some kind of fader, like the 505 has, where when at live i can control the volume and other parameters of my synths. For example i can start moving fader n 1 up do make a fade in of one of the synths phrase without having to control it on the synth itself. Beacause i have a lot to control, an akai s5000, nord modular, korg tribe, prophet vs, nord lead 2, etc., i need some kind of sequencer that let me have a hands-on control of all the modules, like faders or knobs- i prefer the faders. Something like a midi controller ( a kenton for ex.) with a modern midi sequencer built in would be what im searching for but didn´t found anything yet. Thanks again