======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '167'
                                          'artist'  'Bill Callahan'
                                     'text_people'  'Bill Callahan'
                                         'release'  'Woke On A Whaleheart'
                                           'title'  'Footprints'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['lo fi', 'alt country', 'indie rock', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '113.5'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Woke On A Whaleheart'
'TBPM' (BPM (beats per minute))                     '113.5'
'TCOM' (Composer)                                   'Bill Callahan'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'iTunes v7.7.1'
'TIT2' (Title/songname/content description)         'Footprints'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Callahan'
'TPE2' (Band/orchestra/accompaniment)               'Bill Callahan'
'TPUB' (Publisher)                                  'Drag City'
'TRCK' (Track number/Position in set)               '2'
'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', 'alternative rock']
'TXXX:lastfmtags'                                   ['lo fi', 'alt country', 'indie rock', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.22 dB'
'TXXX:replaygain_track_peak'                        '0.456018'

========================== row from database ==========================
                                              'id'  1273654
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Bill Callahan/Woke On A Whaleheart/02 footprints.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  4025258
                                           'mtime'  1636400719
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 02 footprints ifs songwriter folk
                                      'tag_artist'  Bill Callahan
                                     'tag_release'  Woke On A Whaleheart
                                       'tag_title'  Footprints
                                             'bpm'  113.5
                                    'search_title'  'footprints':1
                                   'search_artist'  'bill':1 'callahan':2
                                  'search_release'  'a':3 'on':2 'whaleheart':4 'woke':1
                                     'search_rest'  '00singer':1 'eos':3 'folk':6 'footprints':4 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':8 'a':6C 'bill':2B 'callahan':3B 'eos':10 'folk':13 'footprints':1A,11 'ifs':12 'on':5C 'songwriter':9 'whaleheart':7C 'woke':4C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lo fi', 'alt country', 'indie rock', 'folk', 'singer songwriter']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1636400718.7920535  (2021-11-08 20:45:18)
                             'size'  4025258