Apostrophe Placement

Please can you help. Here is my sentence:

For best results, you’d be sensible to ensure they’re songs which are suitable for your voices current skill level.

Where would you place the apostrophe on the word ‘voices’

Thank you

Since the skill level belongs to your voice then the sentence should be

For best results, you’d be sensible to ensure they’re songs which are suitable for your voice's current skill level.

However, it seems a clumsy phrasing and might be better as

For best results, you should ensure they’re songs which are suitable for your voice's current skill level.