The following website is a good site with a lot of Texas songs. Not all songs that were inspired by or titled about Texas are on this site but there is quite a few. They add to the list as they find them...you can subscribe and receive emails when the list is updated.
www.txsongs.bluegrassbandsoftexas.com/
"Texas, Our Texas," is the official state song of Texas. It was adopted by the Legislature in 1929.
About 340 songs have been written about god
There has been about sixty-four Avenged Sevenfold songs written. That is not including songs from Avenged Sevenfold's side projects. Nor is it including songs that did make in onto any album.
All of her songs have been written for her - she hasn't written any.
there are literally thousands. Every town in Texas has it's own song, and every school in every town has it's own song. There are songs about the rivers, the forts, the bridges, the beaches, the highways, the mountains, and most of the titles start with "Texas..."
Songs of 'Milan' has been written by Anand Bakshi.
136
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No piano notes have been written for Iron Maiden songs.
Birthday is one of Selena Gomez's song that has been written by her.
There are quite a few songs that Steve Ray Vaughn has been involved with. Some of his most famous songs include Texas Flood, Couldn't Stand the Weather, and The Sky is Crying.
Throughout history a huge amount of songs have been written in Europe, and more are written every day, so the question is impossible to answer.
She has stated that she likes to write songs but none of them have been publicly published, so it's unknown how many songs she has written.