Spotify just struck a sour note by hiking its prices—again. Luckily, you don’t have to play along. Starting now, new Spotify subscribers will have to pay $11.99 a month for an individual Premium plan, a $1-a-month increase. Spotify’s Family plans (for up to six household members) are going up a steep $3 a month, to $19.99/month, while Duo plans (for two members) are increasing to $16.99 a month, from $14.99/month. If it feels like Spotify just raised its prices recently, well; it did, with the last Spotify Premium price hike hitting last July. The good news is that you don’t have to sit back a…