monoMED

I, like many others, started making music with trackers. I used Impulse Tracker, back in '97-'98.
For me, monoMED is a time-machine. It travels me back in time, when 2-5MB of samples were enough to finish a bunch of great songs as a nerdy kid in my bedroom on my 386 IBM PC.
For you it might be something else.
But, it is a tracker style, 16 step MIDI sequencer, with Note, Velocity, Note length, Delay / note and 2 assignable controls.
You can change the pattern length and direction, also, you can save and recall patterns.

From version 1.o6, note lengths are in time intervals : 

20 : 1nd
19 : 1n
18 : 1nt 
17 : 2nd 
16 : 2n 
15 : 2nt 
14 : 4nd
13 : 4n
12 : 4nt 
11 : 8nd 
10 : 8n
9 : 8nt 
8 : 16nd
7 : 16n
6 : 16nt 
5 : 32nd 
4 : 32n
3 : 32nt
2 : 64nd
1 : 64n
0 : 128n