Help me build a monthly content calendar. Here's my setup:

**Company:** [What you do, for whom]
**Content pillars:** [3-4 themes you want to cover — e.g., "product how-tos, industry trends, customer stories, thought leadership"]
**Channels:** [Blog, LinkedIn, email newsletter, Twitter — whatever you use]
**Frequency:** [e.g., "2 blog posts/week, daily LinkedIn, weekly newsletter"]
**Current priorities:** [Product launches, events, seasonal themes this month]

Create a 4-week content calendar with:
- Date and channel for each piece
- Content pillar it maps to
- Headline or hook
- 1-sentence description of the angle
- Content type (how-to, opinion, case study, listicle, etc.)

Format as a table. Ensure variety across pillars, channels, and content types. No two consecutive posts should be on the same theme.