Library fixes

[giannifloriddia]

Changes from Original

This fork includes the following updates for compatibility with modern Python and libraries:

• Removed external pYIN vamp plugin dependency: Now uses LibROSA's built-in pyin function for pitch detection
• Removed pypropack dependency: Replaced with scipy.sparse.linalg.svds for truncated SVD
• Updated scipy imports: Fixed deprecated scipy.signal.hamming to scipy.signal.windows.hamming
• Updated librosa API: Fixed librosa.load() to use keyword arguments
• Simplified dependencies: Only requires librosa and scipy (NumPy is installed as a dependency of these)