======================== unified (from filesystem) ========================
                                         'bitrate'  '169.088'
                                        'duration'  '281'
                                          'artist'  'Ibrahim Ferrer'
                                     'text_people'  ''
                                         'release'  'Ibrahim Ferrer'
                                           'title'  'Bruca Manigua'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['cuban', 'latin', 'cuba', 'jazz', 'buena vista social club', 'world']"
                                     'discogstags'  "['latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '11'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'loc-islands-cuba'
                                             'bpm'  '88.904'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '940C390B'
'COMM:ID3v1 Comment:XXX'                            '940C390B'
'TALB' (Album/Movie/Show title)                     'Ibrahim Ferrer'
'TBPM' (BPM (beats per minute))                     '88.904'
'TCON' (Content type, a.k.a. Genre)                 'loc-islands-cuba'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Bruca Manigua'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ibrahim Ferrer'
'TRCK' (Track number/Position in set)               '1/11'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'latin'
'TXXX:lastfmtags'                                   ['cuban', 'latin', 'cuba', 'jazz', 'buena vista social club', 'world']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.655968'

========================== row from database ==========================
                                              'id'  786317
                                            'path'  /data/Music/Bulk/00localcharacter/Latin/Ibrahim Ferrer/Ibrahim Ferrer - Bruca Manigua - 01.mp3
                                         'working'  None
                                         'bitrate'  169
                                    'duration_sec'  281
                                           'genre'  loc-islands-cuba
                                        'filesize'  5954371
                                           'mtime'  1620534922
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Latin 01 loc islands cuba
                                      'tag_artist'  Ibrahim Ferrer
                                     'tag_release'  Ibrahim Ferrer
                                       'tag_title'  Bruca Manigua
                                             'bpm'  88.904
                                    'search_title'  'bruca':1 'manigua':2
                                   'search_artist'  'ferrer':2 'ibrahim':1
                                  'search_release'  'ferrer':2 'ibrahim':1
                                     'search_rest'  'cuba':4 'islands':3 'latin':1 'loc':2
                                    'search_combo'  'bruca':1A 'cuba':10 'ferrer':4B,6C 'ibrahim':3B,5C 'islands':9 'latin':7 'loc':8 'manigua':2A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['cuban', 'latin', 'cuba', 'jazz', 'buena vista social club', 'world']
                                        'tag_date'  1994
                                     'discogstags'  ['latin']

============================== file details ==============================
                                           'mtime'  1620534922.2934215  (2021-05-09 06:35:22)
                             'size'  5954371