<asp:Content ID='Content1' ContentPlaceHolderID='ContentPlaceHolder1' Runat='Server'>

<asp:Repeater ID="Repeater1" runat="server" OnItemDataBound="repeater_ItemDataBound" ItemType="brand" SelectMethod="GetBrandData">
    <ItemTemplate>
        <div class="one-third">
            <div>
             <asp:LinkButton ID="linkButton" OnClick="Repeater1_OnClick" runat="server" CommandArgument='<%# Item.brandId %>'>
                 <asp:Image ID="brandImage" runat="server" height="250px" width="300px" />
             </asp:LinkButton>
            </div>

        </div>
    </ItemTemplate>

protected void Page_Load(object sender, EventArgs e)
{

}

public void repeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    Image img = e.Item.FindControl("brandImage") as Image;
    img.ImageUrl = "../Images/Brands/" + ((brand)e.Item.DataItem).image;
}

public List<brand> GetBrandData()
{
    MusicStoreDBEntities obj = new MusicStoreDBEntities();
    List<brand> list = new List<brand>();
    list = (from g in obj.brands select g).ToList();

    return list;

}

public List<brand> GetBrandData()
{
    MusicStoreDBEntities obj = new MusicStoreDBEntities();
    List<brand> list = new List<brand>();
    list = (from g in obj.brands where g.name=="Ibanez"||g.name=="Fender"||g.name=="Musicman" select g).ToList();

    return list;

}

Type
ID
name

1 guitar
2 bass

Brand
ID
name
image

TypeBrand
IDtype
IDbrand

select Brand.Name
from Brand
join TypeBrand
  on Brand.ID = TypeBrand.IDbrand
 and TypeBrand.IDtype = 2