For best SEO results you should use pretty Permalinks. To do it just go to Settings → Permalinks and set them to Post name.
In case of 404 error for Albums or Works – refresh permalinks
Sometimes after changing slugs of custom post types, or late plugin activation our special post types like Albums or Works can return 404 error on open.
In such case you have to refresh your permalinks:
- Go to Settings → Permalinks and change permalinks to Plain option
- Save and check if your Albums are working any better – link to album/work will be different now so open it again from menu or other place.
- If it loads fine now, then go and change permalinks again to Post name or any other option, and test again like in point 2.