UAwithHolman

During the colonial, revolutionary, and federal periods (1607-1820) most American songs were strongly tied to the musical traditions of the British isles. Hymn tunes, ballads, theater songs, and drinking songs were imported from England or based closely on English models.

he first uniquely American popular song tradition arose with the minstrel show, beginning in the 1840

Initially, sheet music and pocket songsters were the primary means of circulating songs, since many Americans played and sang music in their own homes.

Autism spectrum disorder (ASD) is a range of complex neurodevelopment disorders, characterized by social impairments, communication difficulties, and restricted, repetitive, and stereotyped patterns of behavior.  Autistic disorder, sometimes called autism or classical ASD, is the most severe form of ASD, while other conditions along the spectrum include a milder form known as Asperger syndrome, and childhood disintegrative disorder and pervasive developmental disorder not otherwise specified (usually referred to as PDD-NOS).

The hallmark feature of ASD is impaired social interaction.  As early as infancy, a baby with ASD may be unresponsive to people or focus intently on one item to the exclusion of others for long periods of time.  A child with ASD may appear to develop normally and then withdraw and become indifferent to social engagement.

Most babies start to crawl between 6 and 12 months.

Asperger syndrome, also known as Asperger's syndrome or Asperger disorder, is an autism spectrum disorder (ASD) that is characterized by significant difficulties in social interaction, alongside restricted and repetitive patterns of behavior and interests.

A pervasive developmental disorder, Asperger syndrome is distinguished by a pattern of symptoms rather than a single symptom. It is characterized by qualitative impairment in social interaction, by stereotyped and restricted patterns of behavior, activities and interests, and by no clinically significant delay in cognitive development or general delay in language.[22] Intense preoccupation with a narrow subject, one-sided verbosity, restricted prosody, and physical clumsiness are typical of the condition, but are not required for diagnosis.[5]