The best instrument for solo music ultimately depends on personal preference and skill level. Some may argue that the piano is the best instrument for solo music due to its wide range and ability to play melody and harmony simultaneously. Others may argue that the guitar is the best instrument for solo music because of its versatility and portability. Ultimately, the best instrument for solo music is the one that the musician feels most comfortable and expressive with. **

To separate the background music from the instrument, one can use audio editing software that allows for isolating specific frequencies or tracks. By using tools such as equalizers or filters, one can reduce the frequencies of the instrument in the background music track. Another method is to use audio separation algorithms that are designed to isolate different elements of a mixed audio track. However, it is important to note that complete separation may not always be possible, especially if the background music and instrument share similar frequencies. **

Organ music refers to music that is specifically composed for or performed on the organ, a large keyboard instrument that produces sound by driving pressurized air through pipes. Organ music can range from classical compositions to contemporary pieces, and the instrument is often associated with church music due to its historical use in religious settings. Organ music can be performed solo or as part of a larger ensemble, and it is known for its rich, powerful sound and ability to create a wide range of musical textures. **

The piano is considered a keyboard instrument. While it does have strings inside that produce sound when struck by hammers, the primary way of playing the piano is by pressing keys on the keyboard. The keys are connected to the hammers that strike the strings, making it a unique hybrid instrument that combines elements of both string and keyboard instruments. **

One can download keyboard sheet music for free by visiting websites that offer free sheet music downloads, such as MuseScore, 8notes, or Free-scores.com. These websites have a wide range of keyboard sheet music available for download in various genres and difficulty levels. Users can search for specific songs or browse through the collections to find the sheet music they are looking for. Once they find the desired sheet music, they can simply download and print it for free. **

One can play the keyboard without sheet music by learning to play by ear. This involves listening to a piece of music and then trying to replicate it on the keyboard without looking at any sheet music. Another way is to learn chords and chord progressions, which can be used to play many songs without needing to read sheet music. Additionally, improvising and creating your own music on the keyboard can be a fun way to play without relying on sheet music. **

Fans of 60s and 70s music with keyboard or organ sounds may include music enthusiasts, collectors of vinyl records, and musicians who specialize in that era. Additionally, DJs who specialize in retro music and radio stations that play classic rock and oldies are likely to have a good knowledge of music from that time period. Furthermore, music historians and scholars who study the evolution of popular music may also have a deep understanding of the keyboard and organ-driven music of the 60s and 70s. **

I'd be happy to help you with the church organ. I have experience playing the organ and can assist with selecting appropriate music, providing accompaniment for hymns, and offering guidance on how to use the instrument effectively during church services. Let me know what specific assistance you need, and I'll do my best to support you. **