Ignoring first bit of evidence, apart from in parts of records (1-5)

I believe the answer is:

b-sides

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'parts of records' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'ignoring first bit of evidence apart from' is the wordplay.
'ignoring' is a deletion indicator.
'first bit of evidence' becomes 'e' (1st letter of 'evidence').
'apart from' becomes 'besides' (I've seen this before).
'besides' with 'e' removed is 'B-SIDES'.

'in' acts as a link.

Can you help me to learn more?

I've seen this clue in The Independent.

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