FLAC music without any converting on mac

Try Songbird, it is a great alternative, plays all formats and there also several apps that allow streaming form mac/pc to iphone/ipad via Songbird.

(not that your FLAC will ever sound any better from the iPhone/iPad tiny speakers)

 

Why don't you convert FLAC to mp4a? It's lossless and fully compatible with iTunes.

 

No. You don't need to convert FLAC to MP3 just to make it compatible. Convert it to ALAC (Apple Lossless Audio Codec). Get the free application MAX. It does the trick. Select M4a and voila! ALAC!
Used it on my iTunes, iPhones and iPods.

 

I use Max for ripping to both ALAC and FLAC. No need to choose with today's storage prices...

 

It will duplicate your iTunes playlists, so you get to keep both.
You can also update/import/create new playlists anytime.

 

MP4 is a lossy format. You are thinking of Apple Lossless which is Lossless.

 

Use XLD to convert to Apple lossless, then import into iTunes.

 

I mean m4a, the one I got when I rip it with ALAC.

 

M4a is just a file container. Both AAC (lossy) and Apple Lossless uses m4a.

 

Try Fluke: it lets you listen to FLAC music directly in iTunes and it's free and open source software.

 

Yup, but my m4a is lossless, and converted from FLAC (the one OP asking nonetheless) and it works beautifully with my iTunes so no need to try any new player.