In the period from 1972 to 2003, the art scene in Germany flourished, with various movements and styles emerging and evolving. Art galleries played a crucial role in exhibiting and promoting these diverse artistic expressions. Here are some features and developments that were typical of art galleries in Germany during that time:

1. **Rise of Alternative and Experimental Galleries**: During the 1970s, alternative galleries emerged that focused on experimental and avant-garde art forms. These galleries were often artistically driven and open to new and groundbreaking art practices.

2. **Berlin as an Artistic Center**: Berlin became an important center for the art world, especially after the fall of the Berlin Wall in 1989. Galleries in cities such as Kreuzberg and Mitte attracted artists from all over the world and became hotspots for avant-garde art.

3. **Rise of Conceptual Art**: During the 1970s and 1980s, conceptual art gained popularity in Germany. Art galleries played a key role in presenting conceptual artworks and promoting debates about the nature of art and its relationship to ideas.

4. **Commercialization of the art market**: After the reunification of Germany in 1990, the art market became increasingly commercialized. Galleries began to focus more on the sale of works of art and worked more closely with collectors and auction houses.

5. **Diversity in Exhibitions**: Art galleries in Germany presented a wide range of artistic disciplines, including painting, sculpture, photography, installation art and new media. They also organized exhibitions dedicated to both emerging and established artists, both nationally and internationally.

6. **Digitalization of the Art World**: Towards the end of the period, art galleries began to feel the impact of digitalization. Some galleries began using online platforms to showcase their artwork and expand their reach, while others experimented with digital art forms and installations.

Overall, between 1972 and 2003, art galleries in Germany have played a dynamic and evolving role in promoting the arts and encouraging artistic exchange and innovation.