Echo feature added

I have just implemented a really nice echo feature, which can add echo to your track and selected sample. If your original pattern data looks like this

C-3 01 0 00
--- 01 0 00
--- 01 0 00
--- 01 0 00
E-3 01 0 00
--- 01 0 00
--- 01 0 00
--- 01 0 00

and you press the echo button once, you will get the following pattern:


C-3 01 0 00
--- 01 0 00
C-3 01 C 20
--- 01 0 00
E-3 01 0 00
--- 01 0 00
E-3 01 C 20
--- 01 0 00

You can press the button again to get more echos. The echo feature will never overwrite existing notes, but will overwrite existing effects. Furthermore, you can set the delay with a parameter.

Release day is getting closer! I’m now working on integrating Dropbox support.