There are various ways you can put songs on a Kindle, not all of them entirely satisfactory.

Probably the simplest way is to convert your song file to pdf. This works fine but you need to use a large font for it to be comfortably readable, I suggest at least 20 point and 24 point is better. PDF files are not readily scaleable on the Kindle itself, but if you are using a Kindle app for iPad or Android, you can scale them quite well so this method is probably OK in that case.

I have also tried using Amazon's own conversion service where you email your file in .doc format to Amazon and they convert it and send it to your Kindle. This is unsatisfactory as the layout gets lost and the song just comes back as prose.

There is an app called "Calibre" which will convert files on your PC. This is availabe for PC, Mac and Linux and can be downloaded from http://calibre-ebook.com/download. If you are a Linux user, you may well find you have it in your software repository.

As well as converting your files, Calibre will organise your eBooks so it is quite a useful app. You will need to set up your conversion as Calibre's default is ePub and for Kindle you need Mobi, but there is a preferences option where you can set it up.

Calibre will convert from a variety of formats and I have tried converting from MSWord, Rich Text (.rtf) and PDF. All worked but were not entirely satisfactory as the formatting was less than ideal. The main problem was that large gaps were left between the title and the song and between verses so you didn't get much on each page, but as a quick fix, saving your song files in rich text format and converting from their will work.

I read somewhere that all ebook formats are based on html, the language used to format web documents. I tried formatting a song using html and coverted it using Calibre and the result was far and away the best I have had. The songs are well laid out, though page breaks are usually in the middle of a verse. This is a nuisance and I have not found a way of forcing a page break. However if I were able to force a page break, it would cause problems if you change the font size as you would then want the page break in a different place.

If you want some guidance on html itself, there is the Mudcat Permathread on html.

You can find an html tutorial at http://www.comptechdoc.org/independent/web/html/index.html

You can find an example of a file for a song here. Select the "view source" option in your browser to view the html I used for the song.

Hope you find this useful.