Solal is a stunningly gifted musician, as pianist (leader or sideman), composer, or arranger. He's very deeply intelligent, and with a distinctive sense of humour that shows up if you listen very intently. The more you put in to his music, the more you'll get out of it.
I happen to love his solo work, and remember especially a 1975 MPS recording called "Nothing But Piano". I had the privilege of recording his solo piano performance in a little Toronto jazz club in late June 1988, and still go back to listen to those tapes--2 hours' worth. I spoke with him about releasing the material, but he felt it was too similar in content to the material included on a sorta compilation record--various French artists--recorded the night before in New York as "9:11 PM Town Hall" for Label Bleu. I don't know if either of those releases is currently around, but I don't care---I have my tapes.