Here is a Hub of Classic Songs from the different Regional Mexican subgenres you will NEED to know if you want to gig and join a group. Remember that any song can be played in any Key, so take these chords and the rhythm and plug it into any tono you want.
Also, refer to my diagrams on the Major Scale and Diatonic Chords of a Key in case you are confused by the Roman Numerals. (I = Primera, V7 = Segunda, IV = Tercera, all the others are menores or 7 chords.
If you are confused with how the melody is described, plug these numbers into any scale using the scale degrees on Guitar or Accordion and you will be able to hear the intro. I just give you the start so you can use your ear to find the rest.
There are also hundreds of different versions of these songs, so in case the melody or chords don't line up with the version you're listening to, make the changes accordingly, but this should help get you in the right direction. Also, when it says Terceras/Sextas you can use either or both.
Use CTRL + F to search for song names!
Aguanta Corazon | 2/4 - I - V7 - IV (VI7 - ii during the "Te Prometo" | Melody starts with 5 6 7 8 2 in Sencillas, then 3er Grado in Terceras
Amigos Tuve una Novia - 2/4 | I - V7 - IV | Melody is 1 3 8 7 2 8 in Terceras/Sextas
Amorcito Norteno - 3/4 | I - V7 - IV | Melody starts with 3 4 5 4 2 5
Aquel Amor - 2/4 | I - IV - V7 | Melody starts with 1 2 1 7 1 2 in Sencillas, then 4 4 3 4 4 3 4 in Terceras
Arboles de la Barranca - 3/4 | I - V7 | Melody starts with 3 2 1 3 2 1 3 3
Asesino a Sueldo - 3/4 | IV - V7 - I - V7 | Melody starts with 1 4 3 4 4 5 6 4
Aun Se Acuerda de Mi - 3/4 | I - V7 | Melody starts with 7 7 6 6 5 5 6 6 5 5 4 4 3
Ayer la Vi Por La Calle - 2/4 | IV - V7 - I - V7 | Melody starts 1 4 4 4 4 4 3 4 3 4 3 4 3 4 5 6 6 6 6 6 in Terceras/Sextas, or Sencillas harmonized with Sax
Baraja de Oro - 3/4 | I - IV - V7 | Melody starts with 1 1 7 1 1 2 3 1 2 3 1 2 3 1 2 3 4 4
Belleza de Cantina - 3/4 | I - iii - IV - V7 - IV - I - II7 - V7 | Melody starts with 5 6 5 5 3 1 5
Besos y Caricias - 2/4 | V7 - I - IV -V7 | Melody starts with a sencilla deslice from the b6 to the 7 in Sextas then the 5 picoteo/botoneonada, 3 times. Then, you do the same thing with the b2 to the 3 in Sextas, followed by the 1 picoteo/botoneada.
Bonita Finca de Adobe - 2/4 | V7 - I | Melody starts with 3 5 5 4 3 4 5 5 in
Cada Dia Mas - 2/4 | IV - V7 - I | Melody starts with 6 6 6 5 4, 4 -> next octave of 4 4 4 4 4 4 4 4 3
Casas de Madera - 2/4 | I - V7 | Melody starts with 3 3 2 1 1 1 5 1 1 1 2 1 4 3 3
Chaparra de Mi Amor - 2/4 | I - V7 - IV (during chorus) | Melody starts with 7 8 2 8 7 6 in sencillas, the 4 4 4 4 4 4 4 4 in Terceras
Cielo Azul Cielo Nublado - 2/4 | V7 - I | Melody starts with 5 5 5 5 7 5 6 4 5 5
Clave 7 - 3/4 | V7 - I | Melody starts with 1 2 3 4 5 in sencillas, then 6 6 6 5 6 6 6 5 6 3
Clavelito Chino Chino - 2/4 | I - V7 | Melody starts with an Arpeggio of Primera ( 1 1 3 5) then jumps to the 8 7 5 6 6 5 5 6 6 5 5 5 4
Contrabando y Traicion - 2/4 | I - V7 - IV (during chorus) | No melody
Corrido de los Perez - 3/4 | I - V7 | Melody starts with 5 8 8 8 8 7 6 5 5 6 5 6 5 5 5 4
Cruz de Madera - 2/4 | V7 - I - IV | Melody starts with 7 7 7 6 6 5 5 6 6 5 4 3 2
Cuando Nadie te Quiera - 3/4 | IV - V7 - I | Melody starts with 4 4 4 5 4 6 6 4 4 5 6 5 3 2
De Rodillas Te Pido - 2/4 | I - vi - IV - V7 | Melody starts with 5 5 5 6 7 8 8 5 8 8 5 8 8
Despedida con Mariachi - 3/4 | IV - V7 - I | Melody starts with 4 4 3 2 4 4 3 2 4, 2 2 2 3 3 4 4, 5 5 4 3 5 5 4 3 5 5 4 3 5
Dos Coronas a Mi Madre - 4/4 | V7 - I - IV | Melody starts with 5 6 7 8 2 3 4 5 2
Dos Monedas - 3/4 | I - V7 - IV | Melody starts with 5 5 5 4 5 4 3 4 3 2 3 3 2 2
Dos Pasajes - 2/4 | V7 - I | Melody starts with 6 6 6 6 5 7 6 5 5 5 5 5 4 6 3 1
Dos Vicios - 3/4 | V7 - I | Melody starts with 5 5 5 5 7 2 5 5 5
El 24 de Junio - 3/4 | V7 - I | Melody starts with 5 5 5 5 5 5 5 6 6 5 5 4 4 3 2 1
El Asesino - 3/4 | V7 - I | Melody starts with 2 5 5 6 6 5 6 5 4 3
El Centenario - 3/4 | I - V7 - IV | Melody starts with 8 7 8 8 8 7 7 6 6 5
El Chubasco - 2/4 | I - V7 | Melody starts with 3 3 3 4 5 in Sencillas, then 3 2 1 5 8 7 6 5
El Columpio - 3/4 | IV - V7 - I | Melody starts with 4 5 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
El Cuervo y el Escribano - 3/4 | I - V7 | Melody starts with 8 8 8 8 7 6 5 4 3 4 3 2 1
El Disgusto - 2/4 | V7 - I | Intro Riff starts with 7 8 7 5 3 4 5 7 8 5 in sencillas, Middle Melody does the same but in Terceras/Sextas up until the fuelleo
El Federal de Caminos - 3/4 | I - V7 - IV (during chorus) | Melody starts with 1 1 1 2 3 1 2 3 4 1 3 4 3 2
El Hombre Que Mas Te Amo - 3/4 | V7 - I - IV (during chorus) | Melody starts with 8 3 8 2 7 7 6 5
El Numero Uno - 3/4 | IV - V7 - I | Melody starts with 6 6 6 6 6 5 6 5 4
El Palomito - 2/4 |I - V7 | Melody starts with a trino between the 3 and 5 in sencillas ( 3 5 3 5), then the 8 in Sextas followed by the 6 in between (8 6 6 8, then it flips to 6 6 8 6 8)
El Pariente - 3/4 | I - V7 | Melody starts with 7 6 5 7 6 5 7 6 5
El Puente Roto - 2/4 | I - IV - V7 | Melody starts 1 1 1 1 4 4 3 3 3
El Rengo del Gallo Giro - 3/4 | I - V7 | Melody in the middle starts with 6 6 6 5 5 3 4 3 2
El Rey de la Naturaleza - 3/4 | V7 - I - IV (during chorus) | Melody starts with 3 3 4 3, then does the back and forth adorno from 3 4 3 2 3 2 1 2 1 7 7 6 5
El Rey de Mil Coronas - 2/4 | IV - I - V7 | Melody starts with 1 1 6, 6 5 4 5 6, 6 5 4 5, then the 6 in sextas but playing the high sexta and alternating with the low note.
En las Cantinas - 2/4 | I - V7 | Melody starts with an arpeggio of Primera ( 1 1 3 5), then 6 6 5 4 3 3 3, 6 5 6 5 6 6 4 3
Entierrenme Cantando - 3/4 | IV - V7 - I | Melody starts with 3 3 2 1 2 3 3 4 4 4 4 4 4 4 4 4 4 4 4
Eslabon por Eslabon - 2/4 | I - V7 - IV | Melody starts with 3 3 1 3 1 3 3 1, 3 3 1 3 1 3 3 1 3 3 1 3 3 1 4 3 2 2 2
Esta Noche - 2/4 | I - V7 - IV | Melody starts with a fuelleo from 2 3 4, then 4 4 5 6 6 6 5 5 4 4 4 4 4 4
Flor de Capomo - 2/4 | I - V7 | Melody starts with 1 1 1 3 6 7 5 5 5 4 5 6 4 4 4 3 4 4 4 5 4 3 2 1 2
Hasta la Miel Amarga - 3/4 | IV - V7 - I | Melody starts with 1 1 1 6 1 5 4
Ingratos Ojos Mios - 2/4 | I - V7 - IV | Melody starts with 5 1 1 1 1 1 1 1 2 3 3 3 3 4 4 4 4 3 3 3 3 2
La Cama de Piedra - 3/4 | I - V7 | Melody starts with 5 3 1 2 3 2 1 5
La Camioneta Gris - 2/4 | I - V7 - IV | Melody starts with an arpeggio of 3 3 5 3 5 8 in sencillas, then 3 4 4 4 4 3 5 4 4 in Terceras/Sextas
La Duda - 2/4 | I - V7 - IV | Melody starts with 7 8 8 8 8 8 7 7 6 5 6 7 6 5 4 3 3 4 5 4 3 3 2
La Jaula de Oro - 2/4 | IV - V7 - I | Melody starts with 4 5 6 5 6 5 4 4 3
La Loca - 2/4 | IV - V7 - I | Melody starts with 1 2 1 2 1 2 1 1 2 1, then 1 2 3 4 5 in sencillas
Lamberto Quintero - 3/4 | I - IV - V7 | Melody starts with 5 6 7 8 2 in sencillas, then 3 3 2 3 2 1 in terceras,
La Mesa del Rincon - 2/4 | V7 - I - IV | Melody starts with an arpeggio of the 5 8 3 in sencillas, then 5 4 5 4 5, 4 4 3 4 3 2 in Terceras/Sextas
La Mesera - 3/4 | I - V7 | Melody starts with an arpeggio of 1 3 5 in sencillas, then 8 8 7 7 6 5 6 5 6 5 4 2 5 in Terceras/Sextas
La Nueva Zenaida - 2/4 | I - V7 | Melody in the middle starts with 3 5 in sencillas, then 6 6 5 6 5 5 4 5 4 4 in Terceras/Sextas
La Puerta Negra - 2/4 | I - V7 - IV | Melody starts with 1 1 7 1 1 7 2 1 7 6 5