======================== unified (from filesystem) ========================
                                         'bitrate'  '195.054'
                                        'duration'  '326'
                                          'artist'  'Mount Analog'
                                     'text_people'  ''
                                         'release'  'Mount Analog'
                                           'title'  'If Mountains Could Not Sing'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'Q-PLAY-3', 'q-bass-1', 'q-busy-1', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-2', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'at morning', 'post rock', 'experimental', 'ambient']"
                                     'discogstags'  "['avantgarde']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '122.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x88\x0e\x00\x00'                PRIV(owner='AverageLevel', data=b'\x88\x0e\x00\x00')
'PRIV:PeakValue:\x84r\x00\x00'                      PRIV(owner='PeakValue', data=b'\x84r\x00\x00')
'TALB' (Album/Movie/Show title)                     'Mount Analog'
'TBPM' (BPM (beats per minute))                     '122.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'If Mountains Could Not Sing'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '326000'
'TPE1' (Lead performer(s)/Soloist(s))               'Mount Analog'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'avantgarde'
'TXXX:lastfmtags'                                   ['instrumental', 'at morning', 'post rock', 'experimental', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.633359'

========================== row from database ==========================
                                              'id'  1371926
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Mount Analog - Mount_Analog_-_Mount_Analog/10_-_If_Mountains_Could_Not_Sing.mp3
                                         'working'  None
                                         'bitrate'  195
                                    'duration_sec'  326
                                           'genre'  electronic-ambient
                                        'filesize'  7979816
                                           'mtime'  1636910976
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer Mount_Analog_ _Mount_Analog 10_ _If_Mountains_Could_Not_Sing electronic ambient
                                      'tag_artist'  Mount Analog
                                     'tag_release'  Mount Analog
                                       'tag_title'  If Mountains Could Not Sing
                                             'bpm'  122.2
                                    'search_title'  'could':3 'if':1 'mountains':2 'not':4 'sing':5
                                   'search_artist'  'analog':2 'mount':1
                                  'search_release'  'analog':2 'mount':1
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '10':7 'ambient':14 'analog':4,6 'could':10 'electronic':13 'if':8 'mount':3,5 'mountains':9 'not':11 'sing':12
                                    'search_combo'  '00calmer':11 '00poprockelectronic':10 '10':16 'ambient':23 'analog':7B,9C,13,15 'could':3A,19 'electronic':22 'if':1A,17 'mount':6B,8C,12,14 'mountains':2A,18 'not':4A,20 'sing':5A,21
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'at morning', 'post rock', 'experimental', 'ambient']
                                        'tag_date'  1998
                                     'discogstags'  ['avantgarde']

============================== file details ==============================
                                           'mtime'  1636910976.3893538  (2021-11-14 18:29:36)
                             'size'  7979816