Taireva, Nhemamusasa, Nyamaropa... These are all pieces in the repertoire of the mbira that is said to consist of several hundred songs. But what makes an mbira song?
An mbira piece consists of a basic cyclical pattern which includes numerous intertwined melodies, often with contrasting rhythms. Since the extensive possibilities for rhythmic and melodic variation render each rendition unique, what makes Nhemamusasa Nhemamusasa?
An mbira piece itself is not a fixed musical structure with a specified beginning and end; it is a composition of certain characteristic cyclical patterns that provide a framework for elaboration and variation supporting the creative expression of the performer. Shona mbira music consists of a continuous stream of subtly changing musical ideas; its texture is like a fabric of tightly interwoven melodic/rhythmic lines that interact with each other throughout the performance of a piece.Paul Berliner — The Soul of Mbira
Can we describe or define a piece by a particular melody? The basic pattern of keys played? As the mbiras play through continuous cycles, they expand the collection of pitches. Each cycle brings a new configuration of the existing pattern, and in this way new patterns emerge.
Can we define a piece by its harmonic structure?
In The Soul of Mbira Paul Berliner suggests that:
Musicians associate or distinguish mbira pieces on the basis of numerous formal aspects: harmonic structure (discussed below), characteristic rhythmic and melodic patterns, the pitches which comprise them, tonal centers, the number and length of the basic phrases, amount of variation associated with each piece, and the relationship between the piece’s kushaura and kutsinhira parts.
He describes several formal features that mbira musicians use to describe mbira pieces.
None of these in themselves necessarily describe a "song." Many songs use the same configuration of keys, yet rhythmic differences and playing patterns create different songs. Below we describe three songs that utilize the same mbira keys: Kariga Mombe, Nyamaropa and Mahororo.
Some songs share an overall harmonic movement but different harmonic rhythm. See The Soul of Mbira for Berliner's comparison of the harmonic changes in Nyamaropa and Mahororo. The rhythmic relationship among the melodic lines also differs between pieces.
Some songs share basic elements of harmonic and thematic structure while having different tonal centers. Nhemamusasa and Nyamaropa, for example, follow the same overall harmonic progression and have similar thematic development while having different tonal centers.
Some songs have the same tonal center and share harmonic patterns but differ in their structure. Kuzanga, for example, shares Nhemamusas's tonal center and some of its harmonic progression. But Kuzanga's phrases are 9 beats each not 12. While two of its four phrases follow a harmonic progression similar to Nhemamusasa, two do not.
Given all the formal factors that can make an mbira piece unique, and given that a traditional song's composition is passed down orally and aurally, it is not surprising that mbira players don't always agree on the name of a piece of mbira music. The source of the titles of some mbira songs may be lost to history. When there is agreement on a song's title there may be great variety in the meanings attached to the titles, and it is not at all unreasonable to think that song title that hundreds of years ago were associated with war might become adapted to a more peaceful hunting culture.
Paul Berliner points out that many differences in the names attached to songs represents the ongoing evolution of songs within a family of songs (see below). (Some songs are known by variations on a name, and often these differences reflect regional linguistic differences. So Taireva may be called Taisireva and Bukatiende may be called Mukatiende.)
Quite a few mbira songs share significant enough characteristics to be spoken of as "in the same family." It is assumed that many of these songs evolved from one early parent song as musicians came up with significant enough variations to start giving their variations a new name.
Perhaps the most commonly described family is the Nyamaropa family. Songs in this family such as Kariga Mombe, Mahororo, Chipembere and Mandarindari follow the same over-all harmonic progression and use the same collection of pitches. (Calling it the Nyamaropa family assumes is that these pieces are historically derived from a version of Nyamaropa–although not necessarily the Nyamaropa played today, which may be as much a variation as the other songs.)
Although they are known and played as separate songs, quite a few mbira players play versions of Nyamaropa and Mahororo (and perhaps Kariga Mombe) together. In fact when playing the kushaura to Mahororo with the kushaura to Nyamaropa, the Mahororo part fits nicely behind the Nyamaropa and in this situation becomes a kutsinhira. (Many mbira players enjoy this combination, although I have heard older mbira players frown on this.)
An mbira piece is normally defined by which keys on the mbira are played, not by the absolute tones that sound. (This makes transcribing mbira music to staff notation virtually impossible, although it does not stop people from trying.) Many mbira pieces can be played in multiple tunings. The mbira player plays the same keys in the same patterns; what sounds from the mbira can be strikingly different from tuning to tuning.
Here is Mahororo (kushaura) played in a variety of tunings:
As mentioned above, certain mbira songs follow the same overall harmonic progression and have similar thematic development while having different tonal centers. And so it happens that one mbira song when it's keys are played in a different tuning sounds like a different song.
Because of the role that mbira songs play in spirit possession ceremonies, a value is placed on songs that have been played in the past, as these are the songs ancestral spirits want to hear. This essential role of the mbira song assures that songs pass from generation to generation.
Although people often speak of a song as being one played hundreds of years ago, it is impossible to know precisely what was played given that mbira songs are passed down aurally and orally. What we do know from observing mbira over the past, say, half century, is that it is common for mbira musicians to create new variations of traditional pieces. Often these variations are played along with more traditional variations. But sometimes a new version of a song, although derived from a traditional song, becomes so different that is no longer played with the song it evolved from.
Tute Chigamba has composed several songs that can be identified as variations
but have evolved into separate songs.
Some examples from the current repertoire of mbira suggest how difficult it is to accurately speak of the songs of the distant past.
The existence of "new"and "old" songs that share the same name raises interesting (and unanswerable) questions. If there is an "old Nhemamusasa" that is no longer the song mbira players think of when they think "Nhemamusasa", was there a time in the past when that Nhemamusasa was thought of as "the new Nhemamusasa?" Was there then yet another Nhemamusasa that was at that time considered "the old Nhemamusasa?"
Paul Berliner writes that John Kunaka reported that one source of new pieces were dreams in which he was assisted by ancestral spirits. The “new” pieces a person learns in dreams, he stated, are actually the ancient pieces of the spirits who are teaching him. Could the new pieces be old pieces the spirits want to hear again?