Thanks! I just love seeing exactly what I can get out of this "entry level" keyboard and using it like a synthesizer. On that note, I just ordered an actual synthesizer! It's a Roland Gaia SH-01. As I know this is not "Roland-Tutorial.com", I won't post too much about it here. But basically, it's an older model that is still in production, but it is essentially 3 synthesizers in one. It's not just 3 oscillators. Whereas a conventional synthesizer, like a Mini-Moog, would have it's 3 oscillators mix down to one filter and one pre-amp, this keyboard has a separate filter and pre-amp for each of its oscillators, and each of the three sections also have their own LFO's, so it should be capable of some pretty complex sounds.
It costs about $650, and I realize I could've almost got a PSR-S670 for that money. But I have always wanted a real synthesizer since I was a teenager (Many moons ago!). Yes, I once had a Yamaha DX-7, which was a very powerful instrument capable of making very complex sounds. But, with its non-intuitive FM programming, and it's menu-driven programming, I never felt like I had the real "synthesizer experience" of just firing it up, pushing some buttons, and grabbing some knobs and sliders to either zero in to a sound I am looking for, or just explore sonic possibilities.
I am trying to move away from using just my PSR-E433, and get back to "playing the keyboards". My current set-up involves the E433 and a Casio 88-note weighted-key model, and a set of bass pedals rigged to an old Casio MT-68. I intend to incorporate the Roland into this set-up, and when I record more songs for the "Songs Played by Forum Members" section, I intend to use the entire set-up where the main focus will still be the PSR-E433, but with much more sonic flexibility available without using multi-track recording.
By the way, concerning those bass pedals... When I originally bought the aforementioned DX-7 back in 1985, I also bought a cheap set of used bass pedals, as I had learned to play keyboard on an organ, and I wanted to continue that experience. Well, those pedals would frequently go out of tune, and I had to just turn a little tuning pot to get it back in tune. Then, as you may have guessed by now, it got to the point that it went out of tune, and the tuning pot was turned as far as it could go, and I could no longer tune it. So, I gutted it, and then I just wired the contacts of the bass pedals themselves to a connector, which then goes to another connector that I wired up on the old Casio MT-68. Then, the wires from that connector just go to the contacts of the lower octave of keys on the MT-68. Since the MT-68 is an old, basic design with no velocity sensitivity or aftertouch, the contacts at the keys are just like simple SPST switches.