No, it needs Luma 7.0+ (as specified everywhere the CFW is mentioned in the OP and second post). Follow this guide to update to boot9strap so you can use the latest Luma3DS version. The process is very quick (less than five minutes) and mostly consists of downloading and placing files on the SD card. If you can't take five minutes to update your Luma to 8.x, download Luma 7.0.5 from here and use it alongside a9lh. Luma 7.x is compatible with a9lh.