['salsa', 'amateur recording', 'bass', 'cowbell', 'congas', 'mixed voices singing', 'piano', 'trumpet/trombone', 'crowd cheering/whistling']
Someone is playing a cowbell along with other percussion such as congas along to a pumping bassline. A piano and a brass section are playing a countermelody to the female and male voices singing. In the background you can hear people cheering and whistling. This is an amateur recording and of poor audio-quality. This song may be playing on a dancefloor.