======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '369'
                                          'artist'  'Songs: Ohia'
                                     'text_people'  'Jason Molina'
                                         'release'  'The Magnolia Electric Co.'
                                           'title'  'John Henry Split My Heart'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alt country', 'indie rock', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk;ifs-songwriter-indie-pop'
                                             'bpm'  '144.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Magnolia Electric Co.'
'TBPM' (BPM (beats per minute))                     '144.5'
'TCOM' (Composer)                                   'Jason Molina'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-folk', 'ifs-songwriter-indie-pop']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'John Henry Split My Heart'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Songs: Ohia'
'TPE2' (Band/orchestra/accompaniment)               'Songs: Ohia'
'TPUB' (Publisher)                                  'Secretly Canadian'
'TRCK' (Track number/Position in set)               '07'
'TXXX:CT_GAPLESS_DATA'                              '0'
'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:discogstags'                                  ['rock', 'folk rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alt country', 'indie rock', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.74 dB'
'TXXX:replaygain_track_peak'                        '0.470250'

========================== row from database ==========================
                                              'id'  1266719
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Songs: Ohia - Songs Ohia/The Magnolia Electric Co/07 - john henry split my heart.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  369
                                           'genre'  ifs-songwriter-folk;ifs-songwriter-indie-pop
                                        'filesize'  8924446
                                           'mtime'  1636400659
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 07 john henry split my heart ifs songwriter folk;ifs songwriter indie pop
                                      'tag_artist'  Songs: Ohia
                                     'tag_release'  The Magnolia Electric Co.
                                       'tag_title'  John Henry Split My Heart
                                             'bpm'  144.5
                                    'search_title'  'heart':5 'henry':2 'john':1 'my':4 'split':3
                                   'search_artist'  'ohia':3 'songs':1,2
                                  'search_release'  'co':4,5 'electric':3 'magnolia':2 'the':1
                                     'search_rest'  '00singer':1 'eos':3 'folk':10,12 'heart':8 'henry':5 'ifs':9,11,13 'indie':14 'john':4 'my':7 'pop':15 'songwriter':2 'split':6
                                    'search_combo'  '00singer':14 'co':12C,13C 'electric':11C 'eos':16 'folk':23,25 'heart':5A,21 'henry':2A,18 'ifs':22,24,26 'indie':27 'john':1A,17 'magnolia':10C 'my':4A,20 'ohia':8B 'pop':28 'songs':6B,7B 'songwriter':15 'split':3A,19 'the':9C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alt country', 'indie rock', 'folk', 'singer songwriter']
                                        'tag_date'  2003
                                     'discogstags'  ['rock', 'folk rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636400658.6938062  (2021-11-08 20:44:18)
                             'size'  8924446