Here are some more unconventional and creative strategies for a band to expand their audience:

1. **Immersive Storytelling Experiences**: Create a narrative-driven concert where each song represents a chapter in a story. This can involve theatrical elements, visual projections, or audience participation to enhance the experience.

2. **Create a Podcast or Vlog**: Launch a podcast where band members discuss music, life on the road, and insights into the industry. Alternatively, a vlog series can showcase daily band life, songwriting processes, and tour adventures.

3. **Flash Mob Performances**: Organize surprise flash mob performances in public spaces, like malls or parks. These spontaneous events can draw attention and create buzz on social media.

4. **Host an Online Festival**: Create an online music festival featuring not just their own music but also inviting other bands. This can attract a broader audience and foster community among music fans.

5. **Interactive Music Videos**: Produce music videos that allow viewers to choose different paths or endings, creating a unique experience each time they watch.

6. **Pop-Up Concerts**: Set up unannounced pop-up concerts in unconventional locations (e.g., subway stations, rooftops, or public libraries) to surprise and engage new audiences.

7. **Collaborative Art Installations**: Partner with visual artists to create immersive installations that blend music with art. These can be displayed in galleries or public spaces and can serve as unique promotional tools.

8. **Music and Wellness Events**: Organize events that combine live music with wellness activities, such as yoga sessions or meditation workshops, appealing to audiences interested in holistic experiences.

9. **Story-driven Music Releases**: Release music as a serialized story, with each song revealing a part of the narrative over time, keeping fans engaged and eager for the next chapter.

10. **Digital Scavenger Hunts**: Create a scavenger hunt that involves fans finding clues related to the band’s music or history, with rewards like exclusive merch or free concert tickets.

11. **Crowdsourced Songwriting**: Invite fans to contribute ideas or lyrics for a new song through social media, making them part of the creative process and deepening their connection to the band.

12. **Incorporate Augmented Reality**: Develop an augmented reality (AR) experience tied to their music. For instance, fans could use an app to see AR visuals that accompany songs when they play them.

13. **Charity Challenges**: Engage fans in charity challenges where they can participate in activities (e.g., fitness challenges, art contests) that promote both the band and a good cause, incentivizing participation with exclusive rewards.

14. **Traveling Music Workshop**: Offer music workshops in different cities, where the band teaches fans about songwriting, playing instruments, or production. This can build a loyal following while fostering creativity.

15. **Create a ‘Choose Your Adventure’ Album**: Design an album where each song transitions into different variations or remixes based on listener choices, allowing fans to curate their own listening experience.

These ideas can help the band stand out and connect with audiences in unexpected ways, ultimately expanding their reach and engagement.