Feeding the model separate examples instead of one continuous block of text about finetune-gpt2xl

[CupOfGeo]

I'm using songs for my data the line new line spacing is important and i would like them to be separate while fine tuning so the end of one song isn't the start of another.
I have it create the csv's so that each row is a song but then when it gets group_text applied to it it concatenates them all and make blocks of 1024. looking into trynig to add the DataCollatorWithPadding but not having much luck at the moment

i also notice that its using <|endoftext|> as bos_token and eos_token wondering how that would affect things and if what im doing is even needed if or if i should just have theses tokens between my examples.
from the config.json in the model
"bos_token_id": 50256,
"embed_dropout": 0,
"eos_token_id": 50256,