The Irishmen is 21+ only
Basically, a session is a gathering of musicians for the purpose of playing tunes in a relaxed, informal setting–preferably with a social beverage or two!!
It is a chance to learn (and pass on) the music as part of the aural tradition from which it has come.
The instruments that are used are particular to IRISH music. These include the fiddle, the wooden flute, whistle, button accordion, tenor banjo, concertina, & the Irish (uillean) pipes. ‘Backup’ instruments may be here on occasion, but only to augment/support those playing melody. The Irish drum (bodhran) should be used like good perfume–lightly & sparingly!