Libretica is the diminutive form of libreta (notebook). The suffix -ica (or -ita) is used in Spanish to convey smallness, endearment, or sometimes even insignificance.
In the song, the band members are intrigued by their colleague's mysterious libretica, believing it holds profound secrets. The use of the diminutive adds a touch of charm and curiosity to this seemingly ordinary object, making its eventual revelation even more humorous and memorable.
Have you ever wondered what secrets a mysterious person might be hiding? Aterciopelados explores this in "Tomate," a really fun song about a group of musicians working with a fascinating, kind, and humorous gentleman in 1996. They admired him greatly, especially because he always encouraged them, saying that even as beginners, they were "los mejores, éramos los cantantes" [the best, we were the singers].
What really intrigued them was his little notebook. He was always writing in it, and they'd wonder, "Qué profundo misterio develaría" [What profound mystery would it reveal]? They imagined brilliant thoughts and secret revelations. But one day, he left his notebook on the table, and their curiosity got the best of them. What did they find? Not philosophical insights, but a shopping list! "Leche, pan, tomate, huevos, queso y chocolate, naranjas, peras y avena" [Milk, bread, tomato, eggs, cheese and chocolate, oranges, pears and oats]. Plus, a to-do list: "Pasa por los niños, recoge la aspiradora, despincha la bicicleta, hornea una lata de ricas galletas" [Pick up the kids, get the vacuum cleaner, fix the bike's flat tire, bake a can of delicious cookies]. It's a hilarious reveal that shows even the most intriguing people have everyday lives!