I am flying next month to for the first time to SIN on a sightseeing trip and mileage run. So I'm an EXP flying in J on AA DFW/NRT/DFW segments and flying in economy on the JAL NRT/SIN legs. All ticked code share on AA. While reading about lounge access in SIN I found it a bit confusing . So those of you who have been to NRT and SIN, can you let me know what are best lounges I have access to? Oh also have an AC membership through the AA Elite World MC. Any insight would be appreciated.