Your goal is to flood the board with Madrigals, before dropping a Mirabel Madrigal, Gift of the Family and overwhelming your opponent with a massive amount of lore
The top 28 players of official Disney Lorcana play will have to use these cards to develop and pilot their decks on a magical run to try to become the first ever Disney Lorcana World Champion
The difference is that while they have an ink cost on them, there is also an extra block of text in the description area of the card which details that you can exert a character (turning them sideways and opening them to attack) of a minimum cost in order to play the song card for free
Some cards will have this golden ring around their ink cost
If an Adventure spell leaves the stack in any way other than resolving (most likely by being countered or by failing to resolve because its targets have all become illegal), that card won't be exiled and the spell's controller won't be able to play that card from exile later
The Expert Grid, on the other hand, has all characters beginning in the same section