I hardly remember vs I don't remember much

Some examples from the web:

• (The Widow on Avenue D). LYRICS: I hardly remember your face. I hardly remember the trace of the silver. Of light on your skin. Or watching you sleep
• Apr 26, 2015 ... Alphabet City Cycle: I Hardly Remember ... Georgia Stitt & Marcy Heisler's "I Hardly Remember" performed by Kate Baldwin - Duration: 4:39. by ...
• Jan 8, 2014 ... That Drunken Night (I Hardly Remember). By: corikane. Emma's wasted and accidentally calls Regina instead of her mom. And Regina isn't as ...
• I hardly remember days, I partly feel quite ashamed. That I rarely remember faces . Lyric Meaning. This line is a consequnce of the previous line. Constant travel ...

Some examples from the web:

• I don't remember much, just pieces, but... it was bad.
• I don't remember much about being a baby.
• I don't remember much about my mother, but...
• Luckily, I don't remember much.
• I don't remember much, except that one minute, I was riding the carousel and the next... she was gone.
• First time... I don't remember much.
• I don't remember much After we were attacked the first night.
• I don't remember much after that.
• I don't remember much when I was little.
• I don't remember much from fifth grade, but I remember that.
• I don't remember much about that night, but being locked up in Ad Seg, something must've snapped.
• I don't remember much about it, I had a high fever and only wanted to sleep.
• Listen, I don't remember much of last night, but I have a feeling I was less than professional.
• I don't remember much of the rest of the afternoon.
• I don't remember much about the flight to Beirut, except that I was having obsessive thoughts about death.
• Okay? So I don't remember much, but... thank you and...
• I don't remember much about Anwar when we were in school, except that... all of us left-handers, were all sat together on the last row.
• I don't remember much of those early years, but I do remember the rain.
• I don't remember much from health class, but I do remember that and what untreated venereal disease looks like.
• No, no I'm sure, it was stars, Just that I don't remember much after the K.O.