======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '142'
                                          'artist'  'John Fahey'
                                     'text_people'  'Country Paul'
                                         'release'  'The Transfiguration Of Blind Joe Death'
                                           'title'  'Come Back Baby'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', "
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 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'instrumental', 'blues', 'experimental', 'folk']"
                                     'discogstags'  "['rock', 'blues', 'country blues', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '136.4'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Transfiguration Of Blind Joe Death'
'TBPM' (BPM (beats per minute))                     '136.4'
'TCOM' (Composer)                                   'Country Paul'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TCOP' (Copyright message)                          'Riverboat Records'
'TDRC' (Recording time)                             '1965'
'TENC' (Encoded by)                                 'LAME 3.92'
'TIT2' (Title/songname/content description)         'Come Back Baby'
'TKEY' (Initial key)                                '11A'
'TOPE' (Original artist(s)/performer(s))            'Country Paul'
'TPE1' (Lead performer(s)/Soloist(s))               'John Fahey'
'TPE2' (Band/orchestra/accompaniment)               'John Fahey'
'TPUB' (Publisher)                                  'Takoma'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'blues', 'country blues', 'folk rock']
'TXXX:lastfmtags'                                   ['guitar', 'instrumental', 'blues', 'experimental', 'folk']
'TXXX:q-bass'                                       '4'
'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'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.595372'

========================== row from database ==========================
                                              'id'  1252924
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/John Fahey/The Transfiguration Of Blind Joe Death/john fahey - the transfiguration of blind joe death - 13 - come back baby.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  142
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  3420032
                                           'mtime'  1621853571
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos john fahey the transfiguration of blind joe death 13 come back baby ifs songwriter folk
                                      'tag_artist'  John Fahey
                                     'tag_release'  The Transfiguration Of Blind Joe Death
                                       'tag_title'  Come Back Baby
                                             'bpm'  136.4
                                    'search_title'  'baby':3 'back':2 'come':1
                                   'search_artist'  'fahey':2 'john':1
                                  'search_release'  'blind':4 'death':6 'joe':5 'of':3 'the':1 'transfiguration':2
                                     'search_rest'  '00singer':1 'baby':14 'back':13 'blind':9 'come':12 'death':11 'eos':3 'fahey':5 'folk':16 'ifs':15 'joe':10 'john':4 'of':8 'songwriter':2 'the':6 'transfiguration':7
                                    'search_combo'  '00singer':12 'baby':3A,25 'back':2A,24 'blind':9C,20 'come':1A,23 'death':11C,22 'eos':14 'fahey':5B,16 'folk':27 'ifs':26 'joe':10C,21 'john':4B,15 'of':8C,19 'songwriter':13 'the':6C,17 'transfiguration':7C,18
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', '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-2', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'instrumental', 'blues', 'experimental', 'folk']
                                        'tag_date'  1965
                                     'discogstags'  ['rock', 'blues', 'country blues', 'folk rock']

============================== file details ==============================
                                           'mtime'  1621853571.2828054  (2021-05-24 12:52:51)
                             'size'  3420032