Get all products in collection via ajax.js

ajax-call.js

$.ajax({
    url:'https://michele-mclaughlin-music.myshopify.com/collections/sheet-music?view=ajax',
        type:'GET',
        success: function(data){
 var dataDump =JSON.parse(data);
console.log(dataDump);}
});

collection.ajax.liquid

{% layout none %}
{%- paginate collection.products by 1000 -%}
[
{%- for a in collection.products -%}
{

    "productData{{- forloop.index -}}": {
      "featuredImage":{{ a.featured_image | img_url: '600x' | json }},
      "songTitle":{{ a.metafields.song_title.key | json}},
      "albumKey":{{ a.metafields.album.key | json }},
      "keySig":{{ a.metafields.key-sig.key | json}},
      "difficulty":{{ a.metafields.difficulty.key | json }},
      "variantPrice":{{ a.selected_or_first_available_variant.price | money | json }},
      "variantId":{{ a.selected_or_first_available_variant.id | json}}
    }
}
{%- unless forloop.last -%},{%- endunless -%}
{%- endfor -%}
]
{%- endpaginate -%}