Question: Migration Period art denotes the artwork of the Germanic peoples during the Migration period (ca. 300-900). It includes the Migration art of the Germanic tribes on the continent, as well the start of the Insular art or Hiberno-Saxon art of the Anglo-Saxon and Celtic fusion in the British Isles. It covers many different styles of art including the polychrome style and the animal style.

In the 3rd century the Roman Empire almost collapsed and its army was becoming increasingly Germanic in make-up, so that in the 4th century when Huns pushed German tribes westward, they spilled across the Empire's borders and began to settle there. The Visigoths settled in Italy and then Spain, in the north the Franks settled into Gaul and western Germany, and in the 5th century Scandinavians such as the Angles, Saxons and Jutes invaded Britain. By the close of the 6th century the Western Roman Empire was almost completely replaced with smaller less politically organized, but vigorous, Germanic kingdoms.  Although these kingdoms were never homogeneous, they shared certain common cultural features. They settled in their new lands and become farmers and fishermen. Archaeological evidence shows no tradition of monumental artwork, such as architecture or large sculpture in permanent materials, but a preference instead for "mobile" art for personal display, usually also with a practical function, such as weapons, horse harness, tools, and jewelry which fastened clothes. The surviving art of the Germanic peoples is almost entirely personal adornment, portable, and before conversion to Christianity was buried with its owner. Much art in organic materials has no doubt not survived.  Three styles dominate Germanic art. The polychrome style originated with the Goths who had settled in the Black Sea area. The animal style was found in Scandinavia, north Germany and England. Finally there was Insular art or the Hiberno-Saxon style, a brief but prosperous period after Christianization that saw the fusion of animal style, Celtic, Mediterranean and other motifs and techniques.

Using a quote from the above article, answer the following question: Can you clarify how the art is portable?
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Answer: a preference instead for "mobile" art for personal display, usually also with a practical function,


Question: "Free as a Bird" is a song originally composed and recorded in 1977 as a home demo by John Lennon. In 1995, a studio version of the recording, incorporating contributions from Paul McCartney, George Harrison and Ringo Starr, was released as a single by the Beatles. It was released 25 years after the break-up of the band and 15 years after the death of Lennon. The single was released as part of the promotion for The Beatles Anthology video documentary and the band's Anthology 1 compilation album.

McCartney, Harrison and Starr originally intended to record some incidental background music, as a trio, for the Anthology project, but later realised, according to Starr, that they wanted to record "new music". According to Harrison, they had always agreed that if one of them was not in the band, the others would never replace them and, "... go out as the Beatles", and that the "only other person that could be in it was John."  McCartney then asked Ono if she had any unreleased recordings by Lennon, so she sent him cassette tapes of four songs. "Free as a Bird" was recorded by Lennon in 1977, in his and Ono's Dakota building apartment in New York City, but was not complete. Lennon introduced the song on the cassette by imitating a New York accent and saying, "Free--as a boid" (bird). The other songs were "Grow Old With Me", "Real Love", and "Now and Then". Ono says that it was Harrison and former Beatles road manager Neil Aspinall who initially asked her about the concept of adding vocals and instrumentation to Lennon's demo tapes. Ono stated: "People have said it was all agreed when Paul came over to New York to induct John into the Rock and Roll Hall of Fame, but it was all settled before then. I just used that occasion to hand over the tapes personally to Paul."  McCartney went to Ono's home after the induction ceremony at the Rock and Roll Hall of Fame to listen to, and receive, the Lennon demo tapes; he recalls the meeting with Ono:  She was there with Sean ... and she played us a couple of tracks. There were two newies on mono cassettes which he did at home ... [s]o I checked it out with Sean, because I didn't want him to have a problem with it. He said, "Well, it'll be weird hearing a dead guy on lead vocal. But give it a try." I said to them both, "If it doesn't work out, you can veto it." When I told George and Ringo I'd agreed to that they were going, "What? What if we love it?" It didn't come to that, luckily. I said to Yoko, "Don't impose too many conditions on us, it's really difficult to do this, spiritually. We don't know, we may hate each other after two hours in the studio and just walk out. So don't put any conditions, it's tough enough."  During an interview for the Anthology project, McCartney revealed that he was surprised to learn that Lennon's demos of "Grow Old With Me" and "Real Love" had already been released and were well known by Lennon fans. Starr admitted that when he first listened to the recording he found it very emotional.

Using a quote from the above article, answer the following question: why is it called free as a bird
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Answer: