Tuba after American bandmaster John Philip Sousa, resembles a hélicon with the bell pointed up (in the original models as the J. W. Pepper prototype and Sousa's concert instruments) and then curved to point forward (as developed by Conn and others). Some ancestors of the tuba, such as the military "bombardon", had unusual valve and bore arrangements compared to modern tubas. During the American Civil War, most brass bands used a branch of the brass family known as "saxhorns", which, by today's standards, have a narrower bore taper than tuba—the same as true cornets and baritones, but distinct from trumpets, euphoniums,
The Brass Are Comin' from the television special can be seen on the album's double-fold cover. Unlike the previous Warm album which featured much slower-paced songs leaning more toward a "Brazilian" sound, The Brass Are Comin' featured a western-theme with faster-paced songs. "Good Morning, Mr. Sunshine" became one of the most recognized Tijuana Brass songs from this album and was among the last Mexican-flavored songs recorded by the group . After completing this album and the subsequent television special, the group embarked on a European tour which marked the last public performances of the original TJB. The Brass Are Comin' The Brass Are Comin'