======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '197'
                                          'artist'  'Brian Eno'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Slow Water'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['electronica', 'alternative', 'electronic', 'experimental', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;electronic;set-pl-mor'
                                             'bpm'  '139.658'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '139.658'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'electronic', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Slow Water'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Brian Eno'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '26'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['electronica', 'alternative', 'electronic', 'experimental', 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.45 dB'
'TXXX:replaygain_track_peak'                        '0.565106'

========================== row from database ==========================
                                              'id'  949187
                                            'path'  /data/Music/Bulk/sns/Brian Eno - Slow Water.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  197
                                           'genre'  set-pl-shirleyspinoza;electronic;set-pl-mor
                                        'filesize'  7883881
                                           'mtime'  1636914582
                                   'redo_metaread'  0
                                        'rest_str'   sns set pl shirleyspinoza;electronic;set pl mor
                                      'tag_artist'  Brian Eno
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Slow Water
                                             'bpm'  139.658
                                    'search_title'  'slow':1 'water':2
                                   'search_artist'  'brian':1 'eno':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'electronic':5,8 'mor':10 'pl':3 'set':2,6,9 'shirleyspinoza':4,7 'sns':1
                                    'search_combo'  'brian':3B 'electronic':11,14 'eno':4B 'mor':16 'pl':9 'set':8,12,15 'shirley':5C 'shirleyspinoza':10,13 'slow':1A 'sns':7 'spinoza':6C 'water':2A
                                    'tag_tracknum'  26
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'alternative', 'electronic', 'experimental', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636914581.5636466  (2021-11-14 19:29:41)
                             'size'  7883881