TomasJimenez wrote:Finally I think from what you say that you can record onto a cassette.
There are machines that you can buy that can copy a cassette to CD or I think that they connect to the computer and then once you have your music on computer you can record it to CD and make MP3 files which can be send via the Internet.
Used audio cassette recorders are essentially free, because they are obsolete and few people want them anymore. They also are generally smaller and more portable than desktop computers. However, they record a magnetic analog of an original sound signal on magnetic tape, whereas digital computers make a digital recording by saving a long series of numbers that mathematically describe an original sound signal. Those two very different recording methods result in different types of audio distortions when recordings are played back. A fundamental problem where both methods are used, such as where original sound is recorded on magnetic tape and then the tape is played-back and the audio signal from the tape player is digitized by a computer, is that the final digital recording has both types of audio distortions. So, the advantage of the tape cassette method is ultra low cost and portability and the disadvantage is more distorted recordings.
Where portability isn't important, a much better method is to connect a microphone directly to a computer, so sound signals from the microphone can be digitized directly without first suffering the distortion caused by analog tape recording. Where portability is important, a much better method is to record with a portable digital audio recorder instead of a portable analog cassette tape recorder. Digital audio recorders describe a recorded audio signal with a long series of numbers, just as computers do, so recordings made by a digital audio recorder can be copied directly to a computer without any need for analog-to-digital conversion. That direct-to-digital method provides substantially better end-results and is the method used almost exclusively by professionals these days.
Professional digital audio recorders can be expensive, but even very low cost digital recorders generally produce significantly better quality recordings than can be obtained by recording first on analog tape. I have an iAudio portable audio player that is generally similar an Apple iPod, except that it has significantly better playback audio quality and it has a built-in microphone and digital audio recorder. Even though the manufacturer probably included the recorder mostly to be able brag about having a feature that Apple iPods don't have, it makes surprising good-quality guitar recordings. It also was essentially free, because I bought the iAudio player for its playback capability without realizing at the time of purchase that it had a built-in digital recorder. It is small enough to fit in a pocket or a guitar case and has enough recording space and battery capacity to record more than 30 hours continuously without being recharged. An entertainer could always have a recorder like that with them, could let it run constantly whenever they are playing, and then could select out especially nice portions they want to save on a computer, post to a website, distribute on promotional CD's, or whatever.
I am not especially recommending the iAudio product that I have, because I bought it four years ago and it is no longer being manufactured. However, a variety of relatively inexpensive portable digital recorders are available. I highly recommend that alternative compared to tape recording. My iAudio device is very small and completely self-contained. There are no cables to become tangled, nothing to forget to bring, nothing to connect, and nothing to lose, except the iAudio device itself. There is a main power switch and a record button. Recordings start instantly when the record button is depressed and stop instantly when it is pressed again. My iAudio device can be plugged into the USB port of any PC, Mac or Linux computer and recorded files can be accessed from the computer just as if they had been saved originally to the computer hard disk. Nothing could be simpler. No special software is required on the computer unless someone wants to chop a long recording into sections, as likely would be the case where a long playing session has been recorded as a single audio file. A variety of software products can do that, and some of them are free (the ones that aren't free have advanced features, such as digital filters to reduce certain types of background noise, special processing to add echo effects that will make a recording you made on your patio sound like it was made in a cathedral, etc.).
-Bob