"Dinerito" ("a little money") is a pep talk set to music. Thiago Navarro opens with a clear claim: "La riqueza no empieza cuando llega el dinero" (wealth doesn't start when the money arrives). It starts, he sings, "cuando descubres que tus dones pueden crear valor" (when you discover your gifts can create value).
The rest of the song is a long, cheerful welcome list. Talent, projects, business, clients, savings, investments, even "el dinero" itself are all "siempre bienvenido" (always welcome), and every round ends with "Y el corazón, agradecido" (and the heart, grateful). It is a bit like a manifestation mantra, and the repetition is great practice for noun gender: listen for bienvenido, bienvenida, bienvenidos and bienvenidas changing to match each word.
The bridge is the nicest part. "Ningún árbol nació dando frutos" (no tree was born bearing fruit): everything began "con una semilla" (with a seed), and all wealth "con una decisión" (with a decision). The closing wish asks that money always come "como el aplauso a una vida vivida con propósito" (like applause for a life lived with purpose). Opá is just a happy shout, no translation needed.