One other method to connect the two products: website and magazine will be including ways to purchase the magazine on the website. Needing to be simple for the ease of use by visitors, but not too basic as to come across as not professional enough. In essence, the theme for the website should be minimalist.
And will need to harness the main positive that websites have over print media such as: magazines, their interactivity.
Like any website from a business will want to include the businesses mission statement as a music magazine. Similar to The Guardian which sets out on its website that it is a not for profit print media distributor. This detail will help to make the website feel more legitimate and by setting out its doctrine would make it different to its competitors in the highly unsafe world of magazines and especially music magazines. Setting out these missions in the 'about' section of the website.
If interactivity is to be the key in defining the website, then will want to include details such as the subscribe feature and hyperlinks to the brands social media elsewhere to keep the audience connected to the brand. Moving beyond just a monthly read that once done with, forget about till the next monthly release.