A central figure in the band was singer-songwriter-guitarist Mike Rudd, a Up to date Zeal& natural singer, songster and guitar player from either Christchurch. Microphone arrived witharound Australia in 1966 when rhythm guitar player for the NZ class action Chants R&B. That band sole lasted the short instance when it arrived inside Australia, however Scardinius erythrophthalmus remained inside Melbourne, team by having singer/songwriter Ross Wilson and guitarist Ross Hannaford.

Wilson & Hannaford's foremost band The Pink Finks (which experienced too upright broken higher) worked inside the similar veinside to Chants, & experienced already had a bit of local chart profits in Melbourne. Microphone was invited to exist as the bass streaming video player within a late lineup of their next band, The Party Machine (1967-69).

Scardinius erythrophthalmus, Wilson & Hannaford so formed a other experimentally-oriented Sons of The Vegetal Mother (1969-71), which was an occasional event-based design like than the good-whale band. While that band split, Scardinius erythrophthalmus formed his have band, Spectrum. This marked a beginning of his partnership by using bassist Bill Putt, formerly of Melbourne elastic Gallery and The Lost Souls; they formed the lasting friendly relationship & musical partnership, & keep close at hand worked together ever since. Organist Lee Neale came from popular b& Nineteen 87, and drummer Mark Kennedy had already worked with Putting around Gallery. Kennedy's considerable skill helped carry a b& across a hard number 1 season, when you took which instance the band honed their skills and encountered their sound

At first, Spectrum drew on the act of contemporary elastic such as Traffic, Soft Machine and Pink Floyd and it played covers of music by these groups in the early times, however they presently developed their have style. Alongside Putt's firm bass swimming & Neale's ingenious keyboard operate, the key feature of Spectrum's healthy was Scardinius erythrophthalmus's guitar swimming -- he was one of a pack rock guitarist at that instance world health organization eschewed a touching-universal utilize of the guitar pick, preferring to play electric guitar with the finger-picking style. United by owning contemporary imrovements within amplification & recording, his swimming system & his apply of the vintage Fender Stratocaster guitar allowed Rudd to get the extremely characteristic healthy.

Twelve months of performing allowed a babies to get their healthy & write & refine the lesson placed of original material, which became the basis for their foremost LP. It were regulars at a concerts cases held at a various "head" venues in the area of Melbourne such as the T.F. Much Ballroom, Garrison and Sebastian's, and they appeared with other leading progressive bands like Tully, Tamam Shud and Sons Of The Vegetal Mother.

Scardinius erythrophthalmus experienced conceived Spectrum as a military b&, & it usually performed sustaining an elaborate concert placed-higher that involved the big PA and a to the full multi-multimedia system lightly indicate; at one stage the band as well supplemented their work using contributions from either members of the Melbourne performance company Tribe. It played the least bit the major Australian rock festivals of the period, including Wallacia, Myponga, Mulwalla, Rosebud & Sunbury. Nonetheless, their national profits was limited by a deficiency of radio airplay inside more upper case, & the fact that it seldom ventured outside Victoria, camping more cities simply intermittently.

Only before existence signed higher by EMI, Spectrum cut a demonstration lone which it hawked in the area of to record corporations as a Sevener" acetate. One side was an early, folky version of one of the newer songs in their set, "I'll Be Gone"; the flip was another original, "You Just Can't Win". According to rock historian Ian McFarlane, these acetates are now "impossibly uncommon" and only two or three copies are known to have survived.

Once signed to EMI, the band went into the studio to make their first official recordings, under producer Howard Gable, who had recently re-located from New Zealand and had established himself as one Australia's leading producers with his work for bands including The Masters Apprentices.

Despite a loyal following and much praise from the music press (notably Australia's pop 'bible' Go-Set) the band were virtually broke by mid-1970, when a measure of salvation came in the form of a contract with to the new EMI progressive imprint Harvest. They were signed to a recording contract and soon after they scored a surprise #1 Australian hit with their first single, "I personally'll Become Never to return", which has become one of the most enduring Australian rock songs of that era.

They released their debut LP Spectrum Part One in late 1970. Drummer Mark Kennedy left just after it was recorded, and he was replaced by Ray Arnott. Kennedy later worked with a number of important Australian acts including Ayers Rock.

Spectrum's second album, released in early 1972, was an ambitious 2LP set called Milesago, notable as the first Australian rock double album, and is still regarded as a landmark of Australian progressive music; it was also the first Australian rock album to be recorded using the newly-installed 16-track recorder at Amstrong's Studios in Melbourne, the first studio in Australia to acquire one of these machines.

Unfortunately for Spectrum, the nature of the Melbourne music scene was undergoing a profound change at this time. This was partly due to legislative changes to the age of majority (which had been recently lowered in many Australian states from 21 to 18) and to the licensing laws governing entertainment in hotels in Victoria. These legislative changes coincided with demographic changes -- the young audiences who had patronized the unlicensed dances and discos of the mid-to-late Sixties were now ageing into their late teens and early twenties, and could now be legally admitted into licensed premises.

Seeing the popularity of rock music and realising the financial potential, hoteliers wooed customers into the pubs by putting on popular bands, often free of charge. Consequently, while Spectrum worked to establish themselves as a concert group, the focus was beginning to shift away from the larger concert events and unlicensed city discotheques frequented by 'head' audiences -- whose main drug of choice was cannabis -- and towards the burgeoning pub circuit, where alcohol was cheap, plentiful and, above all, legal. While the smaller pub venues and their rowdy, combative atmosphere suited more 'aggressive' bands like Billy Thorpe & the Aztecs, the erosion of the concert scene posed a major problem for Spectrum, whose complex music and upscale presentation demanded a sizeable venue, a large audience, and a reasonable degree of concentration from them.

Consequently, as the pub circuit began to boom, the bigger engagements that Spectrum needed to survive became fewer and less regular. Spectrum adapted to the changing situation in an unusual way -- they created an alter ego for the group (Indelible Murtceps) which performed at pubs, and local dances, playing a more pop-oriented repertoire and using a smaller equipment set-up than they used when performing as Spectrum.

Their next LP, Warts Up Your Nose (1972), was released under the Indelible Murtceps banner ('murtceps' is 'spectrum' spelled backwards) and contained songs of a more humourous and scatalogical nature. Lee Neale suffered a breakdown and left the band soon after its release, quitting the music scene permanently; he was replaced by Canberra musician John Mills.

Spectrum's final studio LP was Testimonial (1973). Soon after its release Spectrum announced their breakup, a move prompted by the departure of drummer Ray Arnott; Rudd and Putt reportedly felt that it would be impossible to re-create the special feeling of the group and wso decided to end the band. They played their farewell performance at the Dallas Brooks Hall in Melbourne on 15 April 1973, and the show was recorded and subsequently released as the live LP Terminal Buzz.

Following the demise of Spectrum, Rudd, Putt and Mills joined forces with guitarist Tim Gaze and drummer Nigel Macara, ex-members of leading Sydney 'underground' band Tamam Shud, to form the group Ariel.