In Andalusia alone, the southernmost region of the Iberian Peninsula, there are at least 111 music bands (counted by the Andalusian Federation of Bands). This highlights the importance of these groups in the musical tradition of the region. Its task is to keep alive the repertoire and musical legacy of many composers, as well as to accompany the community in such important moments as Holy Week, one of the most important religious and artistic manifestations not only in Andalusia, but in the whole country.
In the field of education, they often represent the first contact of children and young people with music and musical instruments, since a large number of these groups have Music Schools so that new members can start in instrumental practice and in Musical Language.
Typically, there are three types of wind groups that function as bands:

-Cornet and drum bands: instrumental brass and percussion group, where the main melodic instrument is the cornet, usually in C-Reb. Trumpets, flugelhorns and even trombones, euphoniums and even tubas will always be the bass reinforcements. They are more related to the Holy Week processions in which the main image of the procession is that of Christ.
[HD] Stmo. Cristo de las Tres Caidas de Triana - A esta es - 10/10/2015 - YouTube

-Music Group: brass and percussion formation in which the trumpet has a preponderant role with respect to other instruments. They are more related to the Holy Week processions in which the main image of the procession is the Virgin.

[4K] La Esperanza de María | Concierto San Esteban | Virgen de los Reyes - YouTube

-Music Band: has the entire staff of wind and percussion instruments. As they are the most complete, they cover a wider repertoire, not only for Holy Week. They perform concerts of symphonic music, cinema, jazz, pasodobles, etc.
Concierto de Pasodobles de la BM Maestro Tejera en Tomares 2021 - YouTube