
How would 128 GB SSD be tight even for general use? However, it CAN be done (I have only 128 GB SSD as my system disk on my desktop Mac), but you'd need at least 1 extra disk (USB 3) of at least 1 TB.
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You see, of that 128 GB at least 50 GB has to be free space (for system operations), so effectively you only have about 75 GB to install the system and required auxillary files on, and that is cramped already.
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In general that machine is fine to run Logic on, however, that disk is really small, you should not save amnything on it either upgrade it to a 250 GB or even 500 GB SSD, and/or get an external disk of at least 1 TB to save all your projects, movies and photos onto. And IF you ruyn into overload problems, there are a myriad of ways to combat those, so you still get the result you want.

If you can give an indication of how you are intending to use it, then we could give you an indication of how it would run. However, only twelve tracks with multilayered synthesizers could already be too much. But is you have 50 audiotracks, all with compression en EQ plugins, there still should be no problem. "Limitations" really is something you will find out for yourself, by using it. My daughter uses Logic on that exact same Macbook, and she hasn't yet had a system overload (which is the term for Logic stopping because there is too much processing "asked" of it).

There are always limitations, it really depends on how you use it. Logic is an open ended program: it uses plugins, and even the most powerful Mac out now can be brought to a halt by using too many CPU heavy plugins (such as (multiple instances of) certain sophisticated (multilayered) synthesizers, or reverbs, or other complicated effects such as denoising plugins) in Logic. I want to use Logic to be able to record and produce my own music - without any limitations.
