Implement player speed modulation opcode for triplets and such.

README.md

@@ -56,8 +56,10 @@ New features since fork
   - **Test-driven development**. Given that 4klang was already a mature project, 
     the first thing actually implemented was a set of regression tests to avoid 
     breaking everything beyond any hope of repair. Done, using CTest.
-  - **New units**. Bit-crusher, gain, inverse gain, clip. As always, if you
-    don't use them, they won't be compiled into the code.
+  - **New units**. Bit-crusher, gain, inverse gain, clip, modulate bpm
+    (proper triplets!)... As always, if you don't use them, they won't be
+    compiled into the code.
+  - **Pattern length does not have to be a power of 2**.
 
 Future goals
 ------------
@@ -66,8 +68,8 @@ Future goals
     on CMake and compiles on Windows. Cross-platform NASM/YASM macros have been
     drafted and remain to be tested. Once the project is more mature, I will 
     try compiling on other platforms.
-  - **Even more opcodes**. At least: compressor (with side-chaining), change
-    bpm. Maybe also equalizer.
+  - **Even more opcodes**. At least: compressor (with side-chaining). Maybe 
+    also equalizer.
   - **Support for 64-bit targets**.
   - **Browser-based GUI and MIDI instrument**. Modern browsers support WebMIDI,
      WebAudio and, most importantly, they are cross-platform and come installed