======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '230'
                                          'artist'  'Plone'
                                     'text_people'  ''
                                         'release'  'For Beginner Piano'
                                           'title'  'Top & Low Rent'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'experimental', 'warp']"
                                     'discogstags'  "['idm', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '84.070'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'For Beginner Piano'
'TBPM' (BPM (beats per minute))                     '84.070'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Top & Low Rent'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Plone'
'TPE2' (Band/orchestra/accompaniment)               'Plone'
'TPUB' (Publisher)                                  'Matador'
'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'                                  ['idm', 'electronic']
'TXXX:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'experimental', 'warp']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.81 dB'
'TXXX:replaygain_track_peak'                        '0.620572'

========================== row from database ==========================
                                              'id'  1340768
                                            'path'  /data/Music/Bulk/00poprockelectronic/Plone/for beginner piano/plone - 02 - top & low rent.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  230
                                           'genre'  electronic-experimental
                                        'filesize'  5524539
                                           'mtime'  1636917480
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic for beginner piano plone 02 top low rent electronic experimental
                                      'tag_artist'  Plone
                                     'tag_release'  For Beginner Piano
                                       'tag_title'  Top & Low Rent
                                             'bpm'  84.07
                                    'search_title'  'low':2 'rent':3 'top':1
                                   'search_artist'  'plone':1
                                  'search_release'  'beginner':2 'for':1 'piano':3
                                     'search_rest'  '00poprockelectronic':1 'beginner':3 'electronic':9 'experimental':10 'for':2 'low':7 'piano':4 'plone':5 'rent':8 'top':6
                                    'search_combo'  '00poprockelectronic':8 'beginner':6C,10 'electronic':16 'experimental':17 'for':5C,9 'low':2A,14 'piano':7C,11 'plone':4B,12 'rent':3A,15 'top':1A,13
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'experimental', 'warp']
                                        'tag_date'  1999
                                     'discogstags'  ['idm', 'electronic']

============================== file details ==============================
                                           'mtime'  1636917480.2415595  (2021-11-14 20:18:00)
                             'size'  5524539