======================== unified (from filesystem) ========================
                                         'bitrate'  '175.44'
                                        'duration'  '186'
                                          'artist'  'Calexico'
                                     'text_people'  ''
                                         'release'  'Garden Ruin'
                                           'title'  'Letter to Bowie Knife'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'indie', 'fip', 'polyaztone']"
                                     'discogstags'  "['rock', 'folk rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '13'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted;set-pl-sced;rock-pop-indie'
                                             'bpm'  '108.646'
                                             'key'  '9A'
                                        'acoustid'  '220af873-3a20-473d-9f7d-33eb44110d3f'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Garden Ruin'
'TBPM' (BPM (beats per minute))                     '108.646'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-indie-unsorted', 'set-pl-sced', 'rock-pop-indie']
'TDRC' (Recording time)                             '2006-03-31'
'TIT2' (Title/songname/content description)         'Letter to Bowie Knife'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Calexico'
'TPE2' (Band/orchestra/accompaniment)               'Calexico'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/13'
'TSO2'                                              'Calexico'
'TSOP' (Performer sort order)                       'Calexico'
'TXXX:ASIN'                                         'B000ELL7GQ'
'TXXX:Acoustid Id'                                  '220af873-3a20-473d-9f7d-33eb44110d3f'
'TXXX:BARCODE'                                      '5033197385785'
'TXXX:CATALOGNUMBER'                                'SLANG1038578'
'TXXX:LABEL'                                        'City Slang'
'TXXX:MEDIA'                                        'CD'
'TXXX:MusicBrainz Album Artist Id'                  '5e372a49-5672-4fb8-ba14-18c90780c4f9'
'TXXX:MusicBrainz Album Id'                         '7647f320-72f9-4715-9b43-b6fbc3feb096'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5e372a49-5672-4fb8-ba14-18c90780c4f9'
'TXXX:MusicBrainz Track Id'                         'd325a19e-b25a-4f99-bfb4-2e952cf545a0'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'folk rock', 'indie rock']
'TXXX:iTunes_CDDB_IDs'                              '13+663D184CD461B52D8F099A58D4C8A630+7085021'
'TXXX:lastfmtags'                                   ['instrumental', 'indie', 'fip', 'polyaztone']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.388567'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1347415
                                            'path'  /data/Music/Bulk/00poprockelectronic/Calexico/Garden Ruin/05 Letter To Bowie Knife.mp3
                                         'working'  None
                                         'bitrate'  175
                                    'duration_sec'  186
                                           'genre'  ifs-songwriter-indie-unsorted;set-pl-sced;rock-pop-indie
                                        'filesize'  4088676
                                           'mtime'  1638554062
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 05 To ifs songwriter indie unsorted;set pl sced;rock pop indie
                                      'tag_artist'  Calexico
                                     'tag_release'  Garden Ruin
                                       'tag_title'  Letter to Bowie Knife
                                             'bpm'  108.646
                                    'search_title'  'bowie':3 'knife':4 'letter':1 'to':2
                                   'search_artist'  'calexico':1
                                  'search_release'  'garden':1 'ruin':2
                                     'search_rest'  '00poprockelectronic':1 'ifs':3 'indie':5 'pl':10 'pop':15 'rock':12,14 'sced':11,13 'set':7,9 'songwriter':4 'to':2 'unsorted':6,8
                                    'search_combo'  '00poprockelectronic':8 'bowie':3A 'calexico':5B 'garden':6C 'ifs':10 'indie':12 'knife':4A 'letter':1A 'pl':17 'pop':22 'rock':19,21 'ruin':7C 'sced':18,20 'set':14,16 'songwriter':11 'to':2A,9 'unsorted':13,15
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'indie', 'fip', 'polyaztone']
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'folk rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1638554062.419589  (2021-12-03 18:54:22)
                             'size'  4088676