Conditional statements in Applescript?

I am a complete neophyte with Applescript. I am using Midipipe, and trying to set up some conditionals to alter Midi note numbers开发者_StackOverflow社区.

I have two Midi inputs and basically I just need a series of:

If (input one == (a program change variable)){ input two + 1} else blah blah blah...

I need to know how to format it and compile it to run in Midipipe so that it outputs the condition. Thanks so much!

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The basic statements for conditionals in AppleScript are:

if variable = value then
    -- do something
else if variable = othervalue then
    -- do something
else 
    -- do something
end if

obs: "--" are comments lines