Newbie searches Open Source Midi for Ardour on Intel Os X 10.4

Hello everybody,

actually I am searching for an alternative for Logic

(I hope, this is not off-topic …).

As far as I understood the Program Ardour, I can use it for audiorecordings.

Is there any Open Source Midi Software, to control my HardwareSynths, which

I can use in or with Ardour?

I always worked with the synthintern Sequencer, so my knowledge

in Midi- and Audiosoftware is not the best (used to use Garageband for Recordings!!!).

Thank you very much in advance.

Ott

ps: sorry for my bad english …

Deleted by the author, sorry.