Spanish pretty much has one pronunciation per letter, except in some cases. The vowels have one sound except the u, the u is that one kid who wanted to be special and used the glitter on the presentation about the holocaust. Excluding Moon moon, the vowels pronunciation's are these:

The A like in harry
The E like in winchester
The I like in tardis
The O like in bobby
The U like in moon (the sound the two o's make)

The consonants that are "special little snowflakes" sound like this:

The C like cas, in front of: a,o and u
The C like cinderella, in front of: i, e
The G like gryffindor, in front of a, o and u
The G like harry (the sound the H makes) in front of: i,e
The H is not pronounced.
The J like harry (the sound the H makes)
Two l's together sound like a y
The Ñ is pronounced like canyon (the sound the NY make)
a Q before a U makes the U silent
Two Rs are like a drum roll
The Z like think (the sound the TH make)

Author's note:
I hope it wasn't too complicated, if you need help understanding something please comment! And if this helped, vote! Gracias [Thank you]