There are classic songs of every era which are appropriate for every audience. Melody transcends infirmity, so start with those.

Find the songs of your audience's youth and experience. These days it might be songs between 50 and 80 years old.

Alot of music is timeless. So called Celtic music can work, whether it's actually more modern folk band stuff, slow aires, jigs and reels and songs from the past 200 years, or ancient melodies.

Even if the home isn't alligned with any particular religious denomination, many of its residents are, so hymns are a good idea. Old standards as opposed to modern gospel.

Songs relevant to the time of year. Old folks DO notice the passage of time and mark it with song. Seasonal songs, event songs, songs of Christmas, new year, Remembrance, Easter, Thanksgiving, anniversaries of world events...

Don't dumb it down. The audience is old, maybe infirm, but not stupid, and they don't like being patronized, or condescension.

Some melodies from the classical music world are popular.

Find out from the home staff what works, and ask them to let you know what they might hear from other sources.

Parodies, and humourous songs are good, but provide a mix of emotion, just as you would for other audiences.

Don't present everything the same way. Different styles, different instruments, and different posture from the performers will keep it interesting.

Good luck! This is good and worthy work.

Peace, Mooh.