Perhaps you mean Noisetracker? Although Soundtracker was the ultimate first, Mahoney and Kaktus’ Noisetracker was the most use predecessor to Protracker.
Karsten’s Soundtracker was based upon the Rob Hubbard’s composing methods in the early days according to Wikipedia, but i personally suspect that Karsten took a good look at Chris Hülsbeck’s Soundmonitor (which is the first music editor i ever used on the C64).
Renoise is my first tracker.
I started on Acid PRo in 02, then Cubase SX3 in 05 then Ableton Live 6.03 07… Now finally Renoise 2.8 2010
Hi Renoise was my first tracker after using several other DAW’s at first i didn’t get renoise and it sat on my HD until i got fed up with my Current DAW and decided to make a track in renosie. Once i got my head around the vertical patterns 
i was hooked the workflow is phonomanal.
NO
Renoise was my first “tracker”
however, I have touched different stuff since the 90ies
starting with things like “sequencers” (like “C-Lab Notator” and stuff)
and “harddisk recorders” (like “creamw@re Triple-DAT” and others)
and so on …
that one brings back memories … one could really make it swing !
and the MIDI timing of atari was really solid … with some akai sampler that was
+1
Started out with Rockmonitor on the C64, used pretty much all trackers since then. Sountracker by Karsten Obarski is my fondest memory
I started with X-Tracker vom D-Lusion on PC, it’s interface was in text-mode 
I shortly switched to FT2 and stayed with it for a long time, I think 1995-2000. Since then i only made music once in a while. I bought renoise in 2003 or so.
i got devirginized with Renoise as my first ever Tracker DAW.
I’ve used mostly screamtracker 3, my 486 dx 33MHz had a hard time optimally running FT2. 
I’ve also used JohnPlayer on the C64.
more or less screamtracker,fasttracker,impulsetracker,madtracker,modplug,axs,dreamstation,buzz,noisetrekker,aodix,[that weird named other tracker by arguru]
after renoise probably: h8tracker,goattracker,milkytracker,z-tracker,schismtracker,skale (not really)
and a few own trackers
what i really liked too was piano roll software, steinberg card32 + yamaha hs-8, sound club 
MED and then octaMED on the Amiga back in 1990.
MPT or Modplug from '98
Then non trackers / standard DAW’s tried all the main ones.
Now back with the tracker workflow and loving Renoise
[Amiga] -> Noisetracker -> Protracker -> DigiBooster2 -> OctaMED SoundStudio -> [PC] -> (fiddling with lots of lame windows apps) -> Renoise -> eternal bliss!
To me nothing but trackers feels immediate and ‘serious’. Once you get hooked to that level of control, that’s it.
Madtracker was my first DAW. I’ve used it for about 4 years off and on, then recently as I tried to get back to making music I looked at many other DAWs but I just can’t get down and dirty without a tracker interface so Renoise was the natural new home for me. I really think it’s a work of art in itself, I’ve spent too many hours just starring at the interface without doing much, overwhelmed by the possibilities.
Went from Fasttracker 2 to Jeskola Buzz then years of not making music. Got the Korg Volca trio last December en then realized I really wanted to use a tracker interface to sequence them. Found out that Renoise could do the trick and registerd it yesterday after the nag screen started appearing
Started with Tetra Compositor
To > SBStudio
To > Scream Tracker
To > Fasttracker II
To > Impulse Tracker
To > Jeskola Buzz (briefly)
To > Renoise.
I started 1992 when i was 14 years old with an Amiga 500 and Protracker. In 1994 i got my Amiga 2000 (which i still have 
) and switched from Protracker to Oktalyzer and then to Octamed. In 1997 i became my first hardware synthesizer (Roland JP-8000) as birthday present from my dad. Some months later i bought a used Korg M1 workstation on a flea market. I sampled a bunch of sounds from these synths and a lot of funk records into my trackers and used the sounds for making drum & bass and jungle music. I still have hundrets of floppy disks and a hand full Amiga hard drives full of sampled stuff from that time and i still use them sometimes in my music.
i grew up with lots of amiga trackers
Started tracking a long time ago below a list of trackers i used:
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Protracker (Amiga)
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Octamed (Amiga)
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Fast-Tracker (PC)
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Buzz tracker (PC)
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Renoise tracker (PC)
Haha nice. Similar here. I started with Soundtracker, then Protracker, Oktalyzer and then Octamed lot of years. Also tried THX / AHX + Future Composer, but never finished a song there (I still love the sound of future composer tunes!). Then moved to PC. The PC version of OctaMED then was a mess, at least midi timing was not stable (the guy never fixed it!). Later I was liaised with Cubase a lot of years, tried Buzz a bit, did some years projects in Logic (moved to OSX) and finally now using Renoise (I really hate the piano roll “concept”, that concept suxx so much). The only piano roll that is ok is the inplace piano roll in cubase, so you can edit two tracks at a glance. I wish there was some dev, who would combine the graphical view of a piano roll (bars), but write the note into the bar, so the bar only represents the note length, and then the dev would rotate the bars by 90 degrees… Oh, that nearly a tracker view. Aodix looked very nice! Maybe some solid grid was missing there… Sadly arguru passed away and he also always did his own visions (I think he didn’t care so much of his users).
yea, musiclide editor and lots of others. and axs, it, ft2 (alot) mt2 on pc. never liked buzz or similar stuff.
renoise is a tracker, so why should it have a pianoroll like in cubase or reason? … the pattern view is your pianoroll, just vertically