Recording of David Porter's Walking Bells for tape. The piece is a tour through an environmental/concrete landscape. It is another variation on the "cumulative form." This is the second in a series of four tape pieces. As with all these pieces, this piece comments on political and compositional methods and devices. In this instance, the piece makes reference to another composer whose style is borrowed. Other than that, it is pure experience. This piece should be listened to with speakers placed well apart and volume up the the highest comfortable level at the last two minutes of the piece.

Recording of Fernando Condon-Garcia's Suiana Wanka for tape. This work collects and develops independently the materials of a music scene for Peter Shafer work "The Royal Hunt of the Sun". It is based exclusively on sound recordings of various Latin American instruments such as the Indian flute, pincuyos, sicus, tarkas, mohecenos, various kinds of percussion, etc., to which are added, during some passages, instruments from European culture (organ, flute, bass). The original sound was made in a professional studio, and the final realization was made in ELAC, a small Montevideo studio, with the technical assistance of Carlos Da Silveira.

Recording of Frank Royon Le Mée's "Troisième doxologie Saint Sébastien" ("Third Doxology Saint Sebastian"). The piece is an electronic postlude in three stanzas.

Recording of Jarmo Sermilä's "St Henry's Tribe Memorial Anthem" for tape.

Recording of Bohdan Mazurek's 6 electronic preludes for tape.

Recording of Martin Sierek's Quadratwellenklangwurst. The piece is based on micro-intervals through the use of square-wave oscillations. These exact intervals were only achievable with a digital rectangle generator. In the composition, the higher pitched parts of the two harmonies are fed to the cohesive basic tones and a whole sound becomes a glittering sound spectacle. The intervals and the number of individual rectangles constantly increase during the composition and generate acoustic phenomena and end in a cluster. The only "ordinary" intervals, a big second after and then a minor third, are just decoration.

Recording of Stephen Montague's Scythia for electronic tape. Scythia was a region of Central Eurasia in classical antiquity encompassing parts of Eastern Europe east of the Vistula River and Central Asia, with the eastern edges of the region vaguely defined by the Greeks. It was thought of as the great land of education. It was also the place where Prometheus gave fire to man and where he was confined to be tortured by the gods for this. Every day an eagle came and tore out his liver and every day he endured.

Recording of Will Eisma's "Le grand silence d'un seul oiseau" ("The great silence of a single bird") for tape. During World War II, a network of 40,000 km of trenches crossed South Flanders and the North of France. Still today, there remains part of these trenches as a long underground tunnel somewhere around Metz and Verdun. The composition represents an imaginary underground journey from Calais to the Swiss border, through the infernal moles, in the gloomy and frightening obscurity of this absurd war. The poem of Ab Van Eyk tells of these horrors: "Someone walks forward, slowly spitting out his lungs, while a bird pass near me, the gas ......... The night shows fiery angels, among the lights of the "no man's land "; until the twilight silence arrives, the great silence of a only bird, just before sunrise raspberry color." The piece was composed and realized in the studio Five Roses in April 1981.

Recording of Klaus Röder's kristallisation I. The material of this piece are tape recordings of triads played with the guitar. 26 tape loops contented 4 triads each on 4 different channels. The pitches were chosen such as to build a cluster with the extent of one octave by simultaneous reproduction of all 4 channels of one loop. The loops differed in pitch and were arranged in chromatic order so that the 'lowest' loop extended from E1 to Dis1 and the 'highest' one from E1 to Dis2. Then from the tape loops special parts were copied to another tape in a fixed order. By taking either the front or the back part of a tape loop variations in tone color and volume could be made ( loud, clear, hard-swinging: font of the loop; silent, dark, smooth-swinging: back of the loop). The copied parts were cut into pieces according to their duration of tone and then they were put together again. Sequence, color and duration of the tones were provided by the score. Tone color and duration change from tone to tone so that there is a fluctuating impression.The whole tape consists of several thousands of cut pieces that were stuck together. …

Recording of Joe Davidow's "Music for two flutes and tape." All of the sound material for the tape was originally played on the flute. The studio processing has has the aim of enhancing the inner harmonics and enriching the more obscure instrument sounds, bringing them to the forefront in inter-structural relation to the two live flutes. Breath, which is the original source of all the sound in the work, is itself an intricate part of the sound color relationship, together forming a structure of interweaving live and processed flutes, counter posing the real and surreal.

Recording of David Rosenboom's "Nazca liftoff et Time Arroyo." David Rosenboom: Nazca Liftoff and Time Arroyo. Nazca Liftoff and Time Arroyo are two sections of a series of seven pieces composed for the album, "Voyage Futur." These are two examples of what the author calls "high performance." These pieces are completely based on algorithms. Direct actions to the computer have the effect of directing the algorithm process to crucial branches and selecting sets of musical materials and / or relationships with what the program performs. All sounds are created by the author with "Key" controlled by computer with digital sound generation and "Patch-IV".

Recording of Rodolfo Caesar's Tremola impressao. This piece is a mix of disparate languages: instrumental music, sounds of nature and electroacoustic music, resulting in a different kind of electroacoustic music. The material originates from earlier works, not always Caesar's, but manipulated to make it different. He tried to make useful the sounds that were condemned trash; without any comparison with "Fontana Mix" by John Cage

Recording of Werner Kaegi's Conversations: Partie 2: Automne.

Recording of Bertand Dubedout's "Aux lampions" ("To the lanterns"). Lampions are small oil lamps, formerly popular as a carriage light. It is a concrete piece in three movements: "Bal convexe" ("Convex ball"), "Le cocher" ("The coachman"), and "Sous les planches" ("Under the boards"). For writers like Bulgakov, Gogol, and Chekhov, the ball scene is often a story of action, tragedy, or desperation; the ball can ruin an existence or bring hope. Delight, delusion, and loneliness are the multiple stigmata of the ball. The sound materials of the piece are all concrete sounds that are based on reality. The sound forms escape any precedence, combining to create images of incongruous weddings like in an agitated dream.

Recording of Jan Oleszkowicz's Spasme for tape.

Recording of Elżbieta Sikora's La Tête d'Orphée II. the piece is based on the story of Orpheus returning from hell to find Euridice. Commissioned by the Experimental Studio at the Polish Radio in Warsaw in 1981 and was composed in the same studio with the technical collaboration of Barbara Okon-Makowska. It was premiered during the "Warsaw Autumn" festival in September 1981.

Recording of Jacqueline Ozanne's "Son recif" for voice and tape. This piece comes from a work on the myth of the sirens and includes texts written on this theme in their original languages. As the singer/speaker repeats the story, it is crossed by the sounds of these languages, by songs that cannot continue, as well as successive states of emotion. The electroacoustic tape plays a constant dramatic role: sometimes worrisome, sometimes reassuring, sometimes enveloping presences, it continually influences the interpreter in their vocal and dramatic production. The performance includes a video projection.

Recording of Jon Appleton's Sashasonjon for synthesizer. In memorium Alexander Walden (26 December 1896-4 February 1981).

Recording of Roberto Doati's "Una pulce da sabbia" ("A Sand Flea") for tape. This work utilizes a timbre space built on three dimensions: spectral energy distribution, spectral fluctuation, and high frequency energy which precedes the full attack of the tone. The sound synthesis models used are simple waveshaping and FM. The overall structure of the composition is generated by the projection on a two-dimensional space with frequency as the ordinate and time as the abscisa, of an architectural structure plan. Doati achieved the desired temporal extension by means of the ‘slowing perspective’ technique. As regards the choice and the treatment of the macrostructure and its internal organization, they depend exclusively on the compositional parameters: symmetry, regularity, direction, velocity, focus and flight point (terms borrowed from the visual arts world). The internal temporal organization of the polyphonic rhythmic structures that make up the macrostructure is given by the position of the focus. This one is determined too by the parameters above mentioned. Each structure takes the timbre that occupies the corresponding position in the timbre space. It was realized at the facilities of the Centro di Sonologia Computazionale at the University of Padova.

Recording of Robert Rowe's "Spattering... A Shower." This piece of computer music focuses on the organization of sound and the process of adopting the medium of a digital computer to produce music compositions.

Recording of Michel Redolfi's "Naissance et agonie de ma lampe de chevet" ("Birth and agony of my bedside lamp").

Recording of Takehisa Kosugi's The fly for tape.

Recording of Alireza Mashayeki's Polyphonie.

Recording of Bernard Gagnon's Dictée for tape. The majority of the material was executed in real time. The instruments used are voice, a pencil, and also a few oscillator sounds. An oscillator provided a wave that was delayed by tape, and then turned into a voltage to modulate the early sound: a self-modulating delay loop. The piece is a reflection on the anxiety of first learning to write as well as on the degrees of the distances of the writing. The dictation comes from a loudspeaker, while the writer's reactions and his perception of the loudspeaker are captured on the other channel using a microphone. We hear in succession and by degrees of writing: 1. The dictation only. 2. The presence of someone who listens. This presence is signaled by a microphone feedback on the other channel and then a cough. It is good here to specify that the feedback effects are voluntary and controlled. 3. The message changes channel because it becomes the pencil noise of the writer. 4. The transformations that the message undergoes as well as the act of writing of the character who, one realizes, dictates himself. 5. Echoes of his reactions, a kind of subjective …