======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '190'
                                          'artist'  'Wilmoth Houdini'
                                     'text_people'  ''
                                         'release'  'Poor But Ambitious: Calypso Classics'
                                           'title'  "Uncle Jo' Gimme Mo'!"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['world', 'calypso', 'caribbean', 'trinidad']"
                                     'discogstags'  "['calypso']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'loc-style-calypso'
                                             'bpm'  '129.979'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 000002F1 000002F1 000024FD 000024FD 0001EE54 0001EE54 00007AEA 00007AEA '
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'TALB' (Album/Movie/Show title)                     'Poor But Ambitious: Calypso Classics'
'TBPM' (BPM (beats per minute))                     '129.979'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-calypso'
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         "Uncle Jo' Gimme Mo'!"
'TKEY' (Initial key)                                '1B'
'TLEN' (Length)                                     '191160'
'TPE1' (Lead performer(s)/Soloist(s))               'Wilmoth Houdini'
'TPE2' (Band/orchestra/accompaniment)               'Wilmoth Houdini'
'TPOS' (Part of a set)                              'Arhoolie CD7010'
'TPUB' (Publisher)                                  'Arhoolie'
'TRCK' (Track number/Position in set)               '3'
'TXXX:MUTANGIBLE'                                   'http://holywarbles.blogspot.com'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'calypso'
'TXXX:lastfmtags'                                   ['world', 'calypso', 'caribbean', 'trinidad']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.679023'

========================== row from database ==========================
                                              'id'  1511535
                                            'path'  /data/Music/Bulk/00localcharacter/wilmoth houdini - poor but ambitious [arhoolie]/03 uncle jo_ gimme mo_!.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  190
                                           'genre'  loc-style-calypso
                                        'filesize'  7662087
                                           'mtime'  1620586422
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter wilmoth houdini poor but ambitious [arhoolie] 03 uncle jo_ gimme mo_! loc style calypso
                                      'tag_artist'  Wilmoth Houdini
                                     'tag_release'  Poor But Ambitious: Calypso Classics
                                       'tag_title'  Uncle Jo' Gimme Mo'!
                                             'bpm'  129.979
                                    'search_title'  'gimme':4 'jo':2,3 'mo':5,6 'uncle':1
                                   'search_artist'  'houdini':2 'wilmoth':1
                                  'search_release'  'ambitious':3,4 'but':2 'calypso':5 'classics':6 'poor':1
                                     'search_rest'  'ambitious':5 'arhoolie':6,7 'but':4 'calypso':14 'gimme':10 'houdini':2 'jo':9 'loc':12 'mo':11 'poor':3 'style':13 'uncle':8 'wilmoth':1
                                    'search_combo'  'ambitious':11C,12C,19 'arhoolie':20,21 'but':10C,18 'calypso':13C,28 'classics':14C 'gimme':4A,24 'houdini':8B,16 'jo':2A,3A,23 'loc':26 'mo':5A,6A,25 'poor':9C,17 'style':27 'uncle':1A,22 'wilmoth':7B,15
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['world', 'calypso', 'caribbean', 'trinidad']
                                        'tag_date'  1930
                                     'discogstags'  ['calypso']

============================== file details ==============================
                                           'mtime'  1620586422.3864584  (2021-05-09 20:53:42)
                             'size'  7662087